diff --git a/core/dr-catalog/src/lib.rs b/core/dr-catalog/src/lib.rs
index 7b073ce..197c6ec 100644
--- a/core/dr-catalog/src/lib.rs
+++ b/core/dr-catalog/src/lib.rs
@@ -134,6 +134,19 @@ impl Granularity {
     /// about 48 months — and on a linear measure the larger count always looks
     /// further away, which would bias every choice towards too few bars.
     pub fn for_span(seconds: i64) -> Self {
+        Self::for_bucket(seconds.max(1) / Self::TARGET_BARS)
+    }
+
+    /// The calendar unit nearest a bucket of `seconds`, for *labelling* one.
+    ///
+    /// Split out from [`Self::for_span`] because the axis no longer buckets by
+    /// calendar unit at all — it divides the visible span into a fixed number
+    /// of equal bins (see `LibrarySettings::timeline_bars`). What is still
+    /// wanted is the unit a bin is closest to, so a bin of about a day is
+    /// labelled as a date and one of about a year as a year. Asked directly
+    /// rather than derived from the span, because the bin count is now the
+    /// user's rather than this module's target.
+    pub fn for_bucket(seconds: i64) -> Self {
         let seconds = seconds.max(1) as f64;
         // Finest first, so that when two options are equally far from the
         // target the finer one wins: `min_by` keeps the first minimum it saw,
@@ -147,15 +160,14 @@ impl Granularity {
         .into_iter()
         .min_by(|a, b| {
             let cost = |g: Granularity| {
-                let bars = seconds / g.approx_seconds() as f64;
-                // How far off the target, measured multiplicatively: twice as
-                // many and half as many are equally wrong.
+                // How far off, measured multiplicatively: twice as long and
+                // half as long are equally wrong.
                 //
-                // Deliberately not clamped to at least one bar. A span shorter
-                // than a bucket scores *worse* the coarser the bucket, which is
-                // what makes an hour of photographs pick hourly bars instead of
-                // every option tying at "one bar" and the coarsest winning.
-                (bars / Self::TARGET_BARS as f64).ln().abs()
+                // Deliberately not clamped. A bucket shorter than the unit
+                // scores *worse* the coarser the unit, which is what makes an
+                // hour of photographs pick hourly bars instead of every option
+                // tying at "one bucket" and the coarsest winning.
+                (seconds / g.approx_seconds() as f64).ln().abs()
             };
             cost(*a)
                 .partial_cmp(&cost(*b))
diff --git a/core/dr-types/src/lib.rs b/core/dr-types/src/lib.rs
index 352fb83..cb6ab21 100644
--- a/core/dr-types/src/lib.rs
+++ b/core/dr-types/src/lib.rs
@@ -17,7 +17,7 @@ pub use colour::{Chromaticities, Transfer};
 pub use selector::{ColourLabel, DateSelector, FlagState, Selector, Tier};
 pub use settings::{
     CacheSettings, CollisionPolicy, ColourSpace, DevelopSettings, ExportFormat, ExportSettings,
-    ExportTarget, ImportSettings, OutputSharpening, Settings, SizingMode,
+    ExportTarget, ImportSettings, LibrarySettings, OutputSharpening, Settings, SizingMode,
 };
 pub use time::{
     civil_from_unix, civil_from_unix_at, format_date, parse_date, unix_from_civil, Civil,
diff --git a/core/dr-types/src/settings.rs b/core/dr-types/src/settings.rs
index f2baf62..861d9c4 100644
--- a/core/dr-types/src/settings.rs
+++ b/core/dr-types/src/settings.rs
@@ -53,6 +53,60 @@ pub struct Settings {
     pub export: ExportSettings,
     pub develop: DevelopSettings,
     pub import: ImportSettings,
+    pub library: LibrarySettings,
+}
+
+// ---------------------------------------------------------------------------
+// Library
+// ---------------------------------------------------------------------------
+
+/// TRACES: FR-CAT-6
+/// How the library view is drawn, where the answer depends on the screen
+/// rather than on the photographs.
+#[derive(Debug, Clone, PartialEq, Serialize, Deserialize)]
+#[serde(default)]
+pub struct LibrarySettings {
+    /// How many bars the capture-time axis is divided into.
+    ///
+    /// **A fixed count, not a bucket size.** The axis used to bucket by
+    /// calendar unit — year, month, day, hour — and take whichever came
+    /// nearest a target count. Between two of those units the count is free to
+    /// wander by a factor of twelve or thirty, so zooming in halved the number
+    /// of bars two steps out of three: the same picture drawn wider, until it
+    /// suddenly jumped back to fine. Dividing the visible span into a fixed
+    /// number of equal bins makes every zoom step show the same amount of
+    /// detail at a finer scale, which is what zooming is for.
+    ///
+    /// It also makes the axis linear in *time*. Calendar buckets are only
+    /// emitted where photographs exist, and the widget gives each bar an equal
+    /// slot, so a library with gaps drew a February that was six months wide.
+    /// Equal bins include the empty ones, so a bar's position on the track and
+    /// the date under it are the same quantity — which is what lets the range
+    /// band and the position marker be drawn on the same axis as the bars.
+    ///
+    /// Why it is a setting: the right number is a question about the screen.
+    /// 64 bars on a phone held in the hand is finer than a finger can aim at;
+    /// 32 on a desktop monitor wastes most of a tall sidebar.
+    pub timeline_bars: u32,
+}
+
+impl LibrarySettings {
+    /// The counts the settings page offers.
+    ///
+    /// Two, both powers of two, and far enough apart that the difference is
+    /// visible. A free number would be a control the user has to experiment
+    /// with to understand, for a choice with exactly two sensible answers:
+    /// one bar per finger-width on a phone, twice that where there is room.
+    pub const BAR_CHOICES: [u32; 2] = [32, 64];
+}
+
+impl Default for LibrarySettings {
+    fn default() -> Self {
+        // The coarser of the two. A bar has to be wide enough to hit with a
+        // finger before it has to be narrow enough to be precise, and the
+        // smallest screen is the one where getting this wrong hurts most.
+        Self { timeline_bars: 32 }
+    }
 }
 
 // ---------------------------------------------------------------------------
@@ -709,6 +763,18 @@ impl Settings {
     pub fn sanitise(&mut self) {
         self.export.quality = self.export.quality.clamp(1, 100);
 
+        // Snapped to an offered count rather than clamped to a range. The
+        // settings page lights the chip whose value matches, so a
+        // hand-edited 40 would leave every chip dark and the page unable to
+        // say what the axis is currently doing.
+        if !LibrarySettings::BAR_CHOICES.contains(&self.library.timeline_bars) {
+            let wanted = self.library.timeline_bars;
+            self.library.timeline_bars = LibrarySettings::BAR_CHOICES
+                .into_iter()
+                .min_by_key(|n| n.abs_diff(wanted))
+                .unwrap_or(LibrarySettings::default().timeline_bars);
+        }
+
         // A zero-pixel or zero-percent export produces no image. Nudged to the
         // smallest thing that does, rather than back to the default: the user
         // clearly wanted "small", and silently restoring 2048 would ignore
@@ -1050,6 +1116,38 @@ mod tests {
         assert_eq!(s.export.quality, 1);
     }
 
+    #[test]
+    fn every_bar_count_can_be_chosen_on_the_page() {
+        // The page draws one chip per choice and lights the one that matches,
+        // so a default outside the list would leave every chip dark.
+        assert!(LibrarySettings::BAR_CHOICES.contains(&LibrarySettings::default().timeline_bars));
+    }
+
+    #[test]
+    fn sanitise_snaps_a_hand_edited_bar_count_to_an_offered_one() {
+        // The file is hand-editable and the page cannot show a count it does
+        // not offer. Snapped to the nearest rather than reset to the default:
+        // someone who wrote 60 wanted the finer axis, and 32 would ignore that.
+        let mut s = Settings::default();
+        s.library.timeline_bars = 60;
+        s.sanitise();
+        assert_eq!(s.library.timeline_bars, 64);
+
+        s.library.timeline_bars = 0;
+        s.sanitise();
+        assert_eq!(s.library.timeline_bars, 32);
+    }
+
+    #[test]
+    fn sanitise_leaves_an_offered_bar_count_alone() {
+        for n in LibrarySettings::BAR_CHOICES {
+            let mut s = Settings::default();
+            s.library.timeline_bars = n;
+            s.sanitise();
+            assert_eq!(s.library.timeline_bars, n);
+        }
+    }
+
     #[test]
     fn sanitise_rescues_a_zero_dimension() {
         let mut s = Settings::default();
diff --git a/docs/traceability.md b/docs/traceability.md
index 36e12ca..e2be6d4 100644
--- a/docs/traceability.md
+++ b/docs/traceability.md
@@ -10,7 +10,7 @@ Denominators are parsed from [`requirements.md`](requirements.md) at run time, n
 | Metric | Value |
 |---|---|
 | Source files scanned | 180 |
-| TRACES tags found | 545 |
+| TRACES tags found | 555 |
 | Requirements defined | 177 |
 | Requirements covered | 89 |
 | **Coverage** | **50.3%** (89/177) |
@@ -34,25 +34,25 @@ _None._
 | ID | Tagged in |
 |---|---|
 | FR-CAT-1 | [`core/dr-catalog/src/scan.rs:1`](../core/dr-catalog/src/scan.rs#L1), [`core/dr-catalog/src/walk.rs:109`](../core/dr-catalog/src/walk.rs#L109), [`core/dr-catalog/src/walk.rs:162`](../core/dr-catalog/src/walk.rs#L162), [`core/dr-catalog/src/walk.rs:1`](../core/dr-catalog/src/walk.rs#L1), [`core/dr-sync/src/scan.rs:93`](../core/dr-sync/src/scan.rs#L93), [`core/dr-types/src/lib.rs:200`](../core/dr-types/src/lib.rs#L200), [`core/dr-types/src/lib.rs:269`](../core/dr-types/src/lib.rs#L269), [`core/dr-types/src/lib.rs:302`](../core/dr-types/src/lib.rs#L302), [`tools/traceability/src/lib.rs:479`](../tools/traceability/src/lib.rs#L479), [`tools/traceability/src/lib.rs:511`](../tools/traceability/src/lib.rs#L511), [`ui/dr-ui/src/activity.rs:1`](../ui/dr-ui/src/activity.rs#L1), [`ui/dr-ui/src/library.rs:1`](../ui/dr-ui/src/library.rs#L1) |
-| FR-CAT-10 | [`core/dr-ingest/src/layout.rs:1`](../core/dr-ingest/src/layout.rs#L1), [`core/dr-ingest/src/lib.rs:1`](../core/dr-ingest/src/lib.rs#L1), [`core/dr-ingest/src/lib.rs:733`](../core/dr-ingest/src/lib.rs#L733), [`core/dr-types/src/settings.rs:62`](../core/dr-types/src/settings.rs#L62), [`ui/dr-ui/src/import.rs:1`](../ui/dr-ui/src/import.rs#L1), [`ui/dr-ui/src/import.rs:337`](../ui/dr-ui/src/import.rs#L337), [`ui/dr-ui/src/import_ui.rs:1`](../ui/dr-ui/src/import_ui.rs#L1), [`ui/dr-ui/src/lib.rs:944`](../ui/dr-ui/src/lib.rs#L944), [`ui/dr-ui/ui/import.slint:5`](../ui/dr-ui/ui/import.slint#L5), [`ui/dr-ui/ui/library.slint:692`](../ui/dr-ui/ui/library.slint#L692), [`ui/dr-ui/ui/library.slint:842`](../ui/dr-ui/ui/library.slint#L842), [`ui/dr-ui/ui/library.slint:990`](../ui/dr-ui/ui/library.slint#L990) |
+| FR-CAT-10 | [`core/dr-ingest/src/layout.rs:1`](../core/dr-ingest/src/layout.rs#L1), [`core/dr-ingest/src/lib.rs:1`](../core/dr-ingest/src/lib.rs#L1), [`core/dr-ingest/src/lib.rs:733`](../core/dr-ingest/src/lib.rs#L733), [`core/dr-types/src/settings.rs:116`](../core/dr-types/src/settings.rs#L116), [`ui/dr-ui/src/import.rs:1`](../ui/dr-ui/src/import.rs#L1), [`ui/dr-ui/src/import.rs:337`](../ui/dr-ui/src/import.rs#L337), [`ui/dr-ui/src/import_ui.rs:1`](../ui/dr-ui/src/import_ui.rs#L1), [`ui/dr-ui/src/lib.rs:944`](../ui/dr-ui/src/lib.rs#L944), [`ui/dr-ui/ui/import.slint:5`](../ui/dr-ui/ui/import.slint#L5), [`ui/dr-ui/ui/library.slint:1147`](../ui/dr-ui/ui/library.slint#L1147), [`ui/dr-ui/ui/library.slint:849`](../ui/dr-ui/ui/library.slint#L849), [`ui/dr-ui/ui/library.slint:999`](../ui/dr-ui/ui/library.slint#L999) |
 | FR-CAT-11 | [`core/dr-catalog/src/dedup.rs:1`](../core/dr-catalog/src/dedup.rs#L1), [`core/dr-ingest/src/lib.rs:1`](../core/dr-ingest/src/lib.rs#L1), [`core/dr-ingest/src/lib.rs:392`](../core/dr-ingest/src/lib.rs#L392), [`core/dr-sync/src/upload.rs:40`](../core/dr-sync/src/upload.rs#L40), [`ui/dr-ui/src/import.rs:1`](../ui/dr-ui/src/import.rs#L1), [`ui/dr-ui/src/import_ui.rs:1`](../ui/dr-ui/src/import_ui.rs#L1), [`ui/dr-ui/src/lib.rs:944`](../ui/dr-ui/src/lib.rs#L944), [`ui/dr-ui/src/library.rs:152`](../ui/dr-ui/src/library.rs#L152), [`ui/dr-ui/src/library.rs:2081`](../ui/dr-ui/src/library.rs#L2081), [`ui/dr-ui/ui/import.slint:5`](../ui/dr-ui/ui/import.slint#L5) |
 | FR-CAT-12 | [`core/dr-pipeline/src/sidecar.rs:109`](../core/dr-pipeline/src/sidecar.rs#L109) |
 | FR-CAT-13 | [`core/dr-catalog/src/keywords.rs:1`](../core/dr-catalog/src/keywords.rs#L1) |
-| FR-CAT-15 | [`core/dr-catalog/src/schema.rs:365`](../core/dr-catalog/src/schema.rs#L365), [`core/dr-catalog/src/trash.rs:1`](../core/dr-catalog/src/trash.rs#L1), [`core/dr-sync-nextcloud/src/lib.rs:447`](../core/dr-sync-nextcloud/src/lib.rs#L447), [`core/dr-sync/src/lib.rs:124`](../core/dr-sync/src/lib.rs#L124), [`core/dr-sync/src/scan.rs:426`](../core/dr-sync/src/scan.rs#L426), [`core/dr-sync/src/scan.rs:57`](../core/dr-sync/src/scan.rs#L57), [`core/dr-thumbs/src/lib.rs:376`](../core/dr-thumbs/src/lib.rs#L376), [`ui/dr-ui/src/collections_ui.rs:1173`](../ui/dr-ui/src/collections_ui.rs#L1173), [`ui/dr-ui/src/collections_ui.rs:1936`](../ui/dr-ui/src/collections_ui.rs#L1936), [`ui/dr-ui/src/library.rs:152`](../ui/dr-ui/src/library.rs#L152), [`ui/dr-ui/src/library.rs:169`](../ui/dr-ui/src/library.rs#L169), [`ui/dr-ui/src/library.rs:2962`](../ui/dr-ui/src/library.rs#L2962), [`ui/dr-ui/src/library.rs:2994`](../ui/dr-ui/src/library.rs#L2994), [`ui/dr-ui/src/library_ui.rs:128`](../ui/dr-ui/src/library_ui.rs#L128), [`ui/dr-ui/src/library_ui.rs:643`](../ui/dr-ui/src/library_ui.rs#L643), [`ui/dr-ui/src/trash.rs:1`](../ui/dr-ui/src/trash.rs#L1), [`ui/dr-ui/ui/collections.slint:572`](../ui/dr-ui/ui/collections.slint#L572) |
+| FR-CAT-15 | [`core/dr-catalog/src/schema.rs:365`](../core/dr-catalog/src/schema.rs#L365), [`core/dr-catalog/src/trash.rs:1`](../core/dr-catalog/src/trash.rs#L1), [`core/dr-sync-nextcloud/src/lib.rs:447`](../core/dr-sync-nextcloud/src/lib.rs#L447), [`core/dr-sync/src/lib.rs:124`](../core/dr-sync/src/lib.rs#L124), [`core/dr-sync/src/scan.rs:426`](../core/dr-sync/src/scan.rs#L426), [`core/dr-sync/src/scan.rs:57`](../core/dr-sync/src/scan.rs#L57), [`core/dr-thumbs/src/lib.rs:376`](../core/dr-thumbs/src/lib.rs#L376), [`ui/dr-ui/src/collections_ui.rs:1173`](../ui/dr-ui/src/collections_ui.rs#L1173), [`ui/dr-ui/src/collections_ui.rs:1936`](../ui/dr-ui/src/collections_ui.rs#L1936), [`ui/dr-ui/src/library.rs:152`](../ui/dr-ui/src/library.rs#L152), [`ui/dr-ui/src/library.rs:169`](../ui/dr-ui/src/library.rs#L169), [`ui/dr-ui/src/library.rs:2962`](../ui/dr-ui/src/library.rs#L2962), [`ui/dr-ui/src/library.rs:2994`](../ui/dr-ui/src/library.rs#L2994), [`ui/dr-ui/src/library_ui.rs:128`](../ui/dr-ui/src/library_ui.rs#L128), [`ui/dr-ui/src/library_ui.rs:666`](../ui/dr-ui/src/library_ui.rs#L666), [`ui/dr-ui/src/trash.rs:1`](../ui/dr-ui/src/trash.rs#L1), [`ui/dr-ui/ui/collections.slint:572`](../ui/dr-ui/ui/collections.slint#L572) |
 | FR-CAT-1a | [`core/dr-catalog/src/walk.rs:1`](../core/dr-catalog/src/walk.rs#L1), [`core/dr-types/src/lib.rs:53`](../core/dr-types/src/lib.rs#L53) |
 | FR-CAT-2 | [`core/dr-catalog/src/lib.rs:1`](../core/dr-catalog/src/lib.rs#L1), [`core/dr-catalog/src/schema.rs:1`](../core/dr-catalog/src/schema.rs#L1), [`tools/traceability/src/lib.rs:479`](../tools/traceability/src/lib.rs#L479) |
-| FR-CAT-3 | [`core/dr-catalog/src/jobs.rs:1`](../core/dr-catalog/src/jobs.rs#L1), [`core/dr-catalog/src/walk.rs:66`](../core/dr-catalog/src/walk.rs#L66), [`core/dr-sync/src/scan.rs:69`](../core/dr-sync/src/scan.rs#L69), [`core/dr-thumbs/src/codec.rs:1`](../core/dr-thumbs/src/codec.rs#L1), [`core/dr-thumbs/src/lib.rs:1`](../core/dr-thumbs/src/lib.rs#L1), [`ui/dr-ui/src/derived_sync.rs:1`](../ui/dr-ui/src/derived_sync.rs#L1), [`ui/dr-ui/src/import.rs:464`](../ui/dr-ui/src/import.rs#L464), [`ui/dr-ui/src/import.rs:489`](../ui/dr-ui/src/import.rs#L489), [`ui/dr-ui/src/library.rs:2557`](../ui/dr-ui/src/library.rs#L2557), [`ui/dr-ui/src/library.rs:2583`](../ui/dr-ui/src/library.rs#L2583), [`ui/dr-ui/src/library_ui.rs:115`](../ui/dr-ui/src/library_ui.rs#L115), [`ui/dr-ui/src/library_ui.rs:3366`](../ui/dr-ui/src/library_ui.rs#L3366), [`ui/dr-ui/src/library_ui.rs:4154`](../ui/dr-ui/src/library_ui.rs#L4154), [`ui/dr-ui/ui/app.slint:507`](../ui/dr-ui/ui/app.slint#L507), [`ui/dr-ui/ui/settings.slint:330`](../ui/dr-ui/ui/settings.slint#L330), [`ui/dr-ui/ui/settings.slint:72`](../ui/dr-ui/ui/settings.slint#L72) |
+| FR-CAT-3 | [`core/dr-catalog/src/jobs.rs:1`](../core/dr-catalog/src/jobs.rs#L1), [`core/dr-catalog/src/walk.rs:66`](../core/dr-catalog/src/walk.rs#L66), [`core/dr-sync/src/scan.rs:69`](../core/dr-sync/src/scan.rs#L69), [`core/dr-thumbs/src/codec.rs:1`](../core/dr-thumbs/src/codec.rs#L1), [`core/dr-thumbs/src/lib.rs:1`](../core/dr-thumbs/src/lib.rs#L1), [`ui/dr-ui/src/derived_sync.rs:1`](../ui/dr-ui/src/derived_sync.rs#L1), [`ui/dr-ui/src/import.rs:464`](../ui/dr-ui/src/import.rs#L464), [`ui/dr-ui/src/import.rs:489`](../ui/dr-ui/src/import.rs#L489), [`ui/dr-ui/src/library.rs:2557`](../ui/dr-ui/src/library.rs#L2557), [`ui/dr-ui/src/library.rs:2583`](../ui/dr-ui/src/library.rs#L2583), [`ui/dr-ui/src/library_ui.rs:115`](../ui/dr-ui/src/library_ui.rs#L115), [`ui/dr-ui/src/library_ui.rs:3409`](../ui/dr-ui/src/library_ui.rs#L3409), [`ui/dr-ui/src/library_ui.rs:4328`](../ui/dr-ui/src/library_ui.rs#L4328), [`ui/dr-ui/ui/app.slint:513`](../ui/dr-ui/ui/app.slint#L513), [`ui/dr-ui/ui/settings.slint:340`](../ui/dr-ui/ui/settings.slint#L340), [`ui/dr-ui/ui/settings.slint:72`](../ui/dr-ui/ui/settings.slint#L72) |
 | FR-CAT-4 | [`core/dr-catalog/src/lib.rs:1`](../core/dr-catalog/src/lib.rs#L1), [`core/dr-catalog/src/query.rs:1`](../core/dr-catalog/src/query.rs#L1), [`ui/dr-ui/src/library.rs:1`](../ui/dr-ui/src/library.rs#L1), [`ui/dr-ui/src/library_ui.rs:1`](../ui/dr-ui/src/library_ui.rs#L1) |
-| FR-CAT-5 | [`core/dr-catalog/src/keywords.rs:1`](../core/dr-catalog/src/keywords.rs#L1), [`core/dr-catalog/src/merge.rs:1`](../core/dr-catalog/src/merge.rs#L1), [`core/dr-catalog/src/rating.rs:1`](../core/dr-catalog/src/rating.rs#L1), [`core/dr-catalog/src/schema.rs:280`](../core/dr-catalog/src/schema.rs#L280), [`core/dr-catalog/src/schema.rs:783`](../core/dr-catalog/src/schema.rs#L783), [`core/dr-decode/src/lib.rs:285`](../core/dr-decode/src/lib.rs#L285), [`core/dr-decode/src/lib.rs:404`](../core/dr-decode/src/lib.rs#L404), [`core/dr-pipeline/src/sidecar.rs:126`](../core/dr-pipeline/src/sidecar.rs#L126), [`ui/dr-ui/src/collections_ui.rs:1519`](../ui/dr-ui/src/collections_ui.rs#L1519), [`ui/dr-ui/src/collections_ui.rs:1538`](../ui/dr-ui/src/collections_ui.rs#L1538), [`ui/dr-ui/src/library_ui.rs:5533`](../ui/dr-ui/src/library_ui.rs#L5533), [`ui/dr-ui/src/library_ui.rs:5544`](../ui/dr-ui/src/library_ui.rs#L5544), [`ui/dr-ui/src/library_ui.rs:5557`](../ui/dr-ui/src/library_ui.rs#L5557), [`ui/dr-ui/src/library_ui.rs:5572`](../ui/dr-ui/src/library_ui.rs#L5572), [`ui/dr-ui/src/library_ui.rs:5581`](../ui/dr-ui/src/library_ui.rs#L5581), [`ui/dr-ui/ui/app.slint:458`](../ui/dr-ui/ui/app.slint#L458), [`ui/dr-ui/ui/app.slint:579`](../ui/dr-ui/ui/app.slint#L579), [`ui/dr-ui/ui/library.slint:1038`](../ui/dr-ui/ui/library.slint#L1038), [`ui/dr-ui/ui/library.slint:1041`](../ui/dr-ui/ui/library.slint#L1041), [`ui/dr-ui/ui/library.slint:18`](../ui/dr-ui/ui/library.slint#L18), [`ui/dr-ui/ui/library.slint:685`](../ui/dr-ui/ui/library.slint#L685), [`ui/dr-ui/ui/library.slint:736`](../ui/dr-ui/ui/library.slint#L736) |
-| FR-CAT-6 | [`core/dr-catalog/src/collections.rs:1`](../core/dr-catalog/src/collections.rs#L1), [`core/dr-catalog/src/keywords.rs:1`](../core/dr-catalog/src/keywords.rs#L1), [`core/dr-catalog/src/lib.rs:1`](../core/dr-catalog/src/lib.rs#L1), [`core/dr-catalog/src/query.rs:1`](../core/dr-catalog/src/query.rs#L1), [`core/dr-catalog/src/rating.rs:1`](../core/dr-catalog/src/rating.rs#L1), [`core/dr-catalog/src/schema.rs:280`](../core/dr-catalog/src/schema.rs#L280), [`core/dr-types/src/selector.rs:1`](../core/dr-types/src/selector.rs#L1), [`core/dr-types/src/time.rs:67`](../core/dr-types/src/time.rs#L67), [`core/dr-types/src/time.rs:90`](../core/dr-types/src/time.rs#L90), [`ui/dr-ui/src/library.rs:179`](../ui/dr-ui/src/library.rs#L179), [`ui/dr-ui/src/library_ui.rs:4689`](../ui/dr-ui/src/library_ui.rs#L4689), [`ui/dr-ui/src/library_ui.rs:5673`](../ui/dr-ui/src/library_ui.rs#L5673), [`ui/dr-ui/ui/app.slint:461`](../ui/dr-ui/ui/app.slint#L461), [`ui/dr-ui/ui/app.slint:579`](../ui/dr-ui/ui/app.slint#L579), [`ui/dr-ui/ui/library.slint:1107`](../ui/dr-ui/ui/library.slint#L1107), [`ui/dr-ui/ui/library.slint:736`](../ui/dr-ui/ui/library.slint#L736) |
-| FR-CAT-7 | [`core/dr-catalog/src/collections.rs:1`](../core/dr-catalog/src/collections.rs#L1), [`core/dr-catalog/src/merge.rs:1`](../core/dr-catalog/src/merge.rs#L1), [`core/dr-catalog/src/sync.rs:1`](../core/dr-catalog/src/sync.rs#L1), [`core/dr-types/src/selector.rs:1`](../core/dr-types/src/selector.rs#L1), [`ui/dr-ui/src/collections_ui.rs:1634`](../ui/dr-ui/src/collections_ui.rs#L1634), [`ui/dr-ui/src/collections_ui.rs:1`](../ui/dr-ui/src/collections_ui.rs#L1), [`ui/dr-ui/src/derived_sync.rs:1`](../ui/dr-ui/src/derived_sync.rs#L1), [`ui/dr-ui/src/library_ui.rs:3224`](../ui/dr-ui/src/library_ui.rs#L3224), [`ui/dr-ui/ui/app.slint:574`](../ui/dr-ui/ui/app.slint#L574), [`ui/dr-ui/ui/collections.slint:4`](../ui/dr-ui/ui/collections.slint#L4), [`ui/dr-ui/ui/library.slint:707`](../ui/dr-ui/ui/library.slint#L707), [`ui/dr-ui/ui/library.slint:726`](../ui/dr-ui/ui/library.slint#L726) |
-| FR-CAT-8 | [`core/dr-pipeline/src/ops/curve.rs:136`](../core/dr-pipeline/src/ops/curve.rs#L136), [`core/dr-pipeline/src/ops/curve.rs:652`](../core/dr-pipeline/src/ops/curve.rs#L652), [`core/dr-pipeline/src/sidecar.rs:1273`](../core/dr-pipeline/src/sidecar.rs#L1273), [`core/dr-pipeline/src/sidecar.rs:90`](../core/dr-pipeline/src/sidecar.rs#L90), [`core/dr-pipeline/tests/tone_curve.rs:33`](../core/dr-pipeline/tests/tone_curve.rs#L33), [`ui/dr-ui/src/develop.rs:2600`](../ui/dr-ui/src/develop.rs#L2600), [`ui/dr-ui/src/develop.rs:2628`](../ui/dr-ui/src/develop.rs#L2628), [`ui/dr-ui/src/export.rs:749`](../ui/dr-ui/src/export.rs#L749), [`ui/dr-ui/src/lib.rs:1169`](../ui/dr-ui/src/lib.rs#L1169), [`ui/dr-ui/src/lib.rs:1509`](../ui/dr-ui/src/lib.rs#L1509), [`ui/dr-ui/src/lib.rs:1614`](../ui/dr-ui/src/lib.rs#L1614), [`ui/dr-ui/src/lib.rs:464`](../ui/dr-ui/src/lib.rs#L464), [`ui/dr-ui/src/lib.rs:796`](../ui/dr-ui/src/lib.rs#L796), [`ui/dr-ui/src/library.rs:1504`](../ui/dr-ui/src/library.rs#L1504), [`ui/dr-ui/src/library.rs:340`](../ui/dr-ui/src/library.rs#L340), [`ui/dr-ui/src/library.rs:378`](../ui/dr-ui/src/library.rs#L378), [`ui/dr-ui/src/library.rs:415`](../ui/dr-ui/src/library.rs#L415), [`ui/dr-ui/src/library.rs:655`](../ui/dr-ui/src/library.rs#L655), [`ui/dr-ui/src/library_ui.rs:4443`](../ui/dr-ui/src/library_ui.rs#L4443), [`ui/dr-ui/src/sidecar_cache.rs:1`](../ui/dr-ui/src/sidecar_cache.rs#L1) |
-| FR-CAT-9 | [`core/dr-catalog/src/cache.rs:1`](../core/dr-catalog/src/cache.rs#L1), [`core/dr-catalog/src/scan.rs:1`](../core/dr-catalog/src/scan.rs#L1), [`core/dr-catalog/src/schema.rs:337`](../core/dr-catalog/src/schema.rs#L337), [`core/dr-catalog/src/walk.rs:162`](../core/dr-catalog/src/walk.rs#L162), [`core/dr-catalog/src/walk.rs:1`](../core/dr-catalog/src/walk.rs#L1), [`core/dr-catalog/src/walk.rs:435`](../core/dr-catalog/src/walk.rs#L435), [`core/dr-catalog/src/walk.rs:704`](../core/dr-catalog/src/walk.rs#L704), [`core/dr-sync-nextcloud/src/desktop_client.rs:30`](../core/dr-sync-nextcloud/src/desktop_client.rs#L30), [`core/dr-sync/src/reachability.rs:1`](../core/dr-sync/src/reachability.rs#L1), [`core/dr-types/src/lib.rs:119`](../core/dr-types/src/lib.rs#L119), [`ui/dr-ui/src/develop.rs:2325`](../ui/dr-ui/src/develop.rs#L2325), [`ui/dr-ui/src/library.rs:138`](../ui/dr-ui/src/library.rs#L138), [`ui/dr-ui/src/library.rs:1464`](../ui/dr-ui/src/library.rs#L1464), [`ui/dr-ui/src/library.rs:1541`](../ui/dr-ui/src/library.rs#L1541), [`ui/dr-ui/src/library.rs:196`](../ui/dr-ui/src/library.rs#L196), [`ui/dr-ui/src/library.rs:3177`](../ui/dr-ui/src/library.rs#L3177), [`ui/dr-ui/src/library.rs:415`](../ui/dr-ui/src/library.rs#L415), [`ui/dr-ui/src/library.rs:639`](../ui/dr-ui/src/library.rs#L639), [`ui/dr-ui/src/library.rs:655`](../ui/dr-ui/src/library.rs#L655), [`ui/dr-ui/src/library.rs:709`](../ui/dr-ui/src/library.rs#L709), [`ui/dr-ui/src/library_ui.rs:1450`](../ui/dr-ui/src/library_ui.rs#L1450), [`ui/dr-ui/src/library_ui.rs:1476`](../ui/dr-ui/src/library_ui.rs#L1476), [`ui/dr-ui/src/library_ui.rs:1492`](../ui/dr-ui/src/library_ui.rs#L1492), [`ui/dr-ui/src/library_ui.rs:1586`](../ui/dr-ui/src/library_ui.rs#L1586), [`ui/dr-ui/src/library_ui.rs:170`](../ui/dr-ui/src/library_ui.rs#L170), [`ui/dr-ui/src/library_ui.rs:203`](../ui/dr-ui/src/library_ui.rs#L203), [`ui/dr-ui/src/library_ui.rs:2119`](../ui/dr-ui/src/library_ui.rs#L2119), [`ui/dr-ui/src/library_ui.rs:2552`](../ui/dr-ui/src/library_ui.rs#L2552), [`ui/dr-ui/src/library_ui.rs:2734`](../ui/dr-ui/src/library_ui.rs#L2734), [`ui/dr-ui/src/library_ui.rs:3015`](../ui/dr-ui/src/library_ui.rs#L3015), [`ui/dr-ui/src/library_ui.rs:3087`](../ui/dr-ui/src/library_ui.rs#L3087), [`ui/dr-ui/src/library_ui.rs:3275`](../ui/dr-ui/src/library_ui.rs#L3275), [`ui/dr-ui/src/library_ui.rs:3393`](../ui/dr-ui/src/library_ui.rs#L3393), [`ui/dr-ui/src/library_ui.rs:358`](../ui/dr-ui/src/library_ui.rs#L358), [`ui/dr-ui/src/library_ui.rs:416`](../ui/dr-ui/src/library_ui.rs#L416), [`ui/dr-ui/src/library_ui.rs:4734`](../ui/dr-ui/src/library_ui.rs#L4734), [`ui/dr-ui/src/library_ui.rs:4849`](../ui/dr-ui/src/library_ui.rs#L4849), [`ui/dr-ui/src/presets.rs:309`](../ui/dr-ui/src/presets.rs#L309), [`ui/dr-ui/src/presets.rs:321`](../ui/dr-ui/src/presets.rs#L321), [`ui/dr-ui/src/sidecar_cache.rs:1`](../ui/dr-ui/src/sidecar_cache.rs#L1) |
+| FR-CAT-5 | [`core/dr-catalog/src/keywords.rs:1`](../core/dr-catalog/src/keywords.rs#L1), [`core/dr-catalog/src/merge.rs:1`](../core/dr-catalog/src/merge.rs#L1), [`core/dr-catalog/src/rating.rs:1`](../core/dr-catalog/src/rating.rs#L1), [`core/dr-catalog/src/schema.rs:280`](../core/dr-catalog/src/schema.rs#L280), [`core/dr-catalog/src/schema.rs:783`](../core/dr-catalog/src/schema.rs#L783), [`core/dr-decode/src/lib.rs:285`](../core/dr-decode/src/lib.rs#L285), [`core/dr-decode/src/lib.rs:404`](../core/dr-decode/src/lib.rs#L404), [`core/dr-pipeline/src/sidecar.rs:126`](../core/dr-pipeline/src/sidecar.rs#L126), [`ui/dr-ui/src/collections_ui.rs:1519`](../ui/dr-ui/src/collections_ui.rs#L1519), [`ui/dr-ui/src/collections_ui.rs:1538`](../ui/dr-ui/src/collections_ui.rs#L1538), [`ui/dr-ui/src/library_ui.rs:5851`](../ui/dr-ui/src/library_ui.rs#L5851), [`ui/dr-ui/src/library_ui.rs:5862`](../ui/dr-ui/src/library_ui.rs#L5862), [`ui/dr-ui/src/library_ui.rs:5875`](../ui/dr-ui/src/library_ui.rs#L5875), [`ui/dr-ui/src/library_ui.rs:5890`](../ui/dr-ui/src/library_ui.rs#L5890), [`ui/dr-ui/src/library_ui.rs:5899`](../ui/dr-ui/src/library_ui.rs#L5899), [`ui/dr-ui/ui/app.slint:458`](../ui/dr-ui/ui/app.slint#L458), [`ui/dr-ui/ui/app.slint:585`](../ui/dr-ui/ui/app.slint#L585), [`ui/dr-ui/ui/library.slint:1195`](../ui/dr-ui/ui/library.slint#L1195), [`ui/dr-ui/ui/library.slint:1198`](../ui/dr-ui/ui/library.slint#L1198), [`ui/dr-ui/ui/library.slint:18`](../ui/dr-ui/ui/library.slint#L18), [`ui/dr-ui/ui/library.slint:842`](../ui/dr-ui/ui/library.slint#L842), [`ui/dr-ui/ui/library.slint:893`](../ui/dr-ui/ui/library.slint#L893) |
+| FR-CAT-6 | [`core/dr-catalog/src/collections.rs:1`](../core/dr-catalog/src/collections.rs#L1), [`core/dr-catalog/src/keywords.rs:1`](../core/dr-catalog/src/keywords.rs#L1), [`core/dr-catalog/src/lib.rs:1`](../core/dr-catalog/src/lib.rs#L1), [`core/dr-catalog/src/query.rs:1`](../core/dr-catalog/src/query.rs#L1), [`core/dr-catalog/src/rating.rs:1`](../core/dr-catalog/src/rating.rs#L1), [`core/dr-catalog/src/schema.rs:280`](../core/dr-catalog/src/schema.rs#L280), [`core/dr-types/src/selector.rs:1`](../core/dr-types/src/selector.rs#L1), [`core/dr-types/src/settings.rs:63`](../core/dr-types/src/settings.rs#L63), [`core/dr-types/src/time.rs:67`](../core/dr-types/src/time.rs#L67), [`core/dr-types/src/time.rs:90`](../core/dr-types/src/time.rs#L90), [`ui/dr-ui/src/library.rs:179`](../ui/dr-ui/src/library.rs#L179), [`ui/dr-ui/src/library.rs:3123`](../ui/dr-ui/src/library.rs#L3123), [`ui/dr-ui/src/library_ui.rs:259`](../ui/dr-ui/src/library_ui.rs#L259), [`ui/dr-ui/src/library_ui.rs:328`](../ui/dr-ui/src/library_ui.rs#L328), [`ui/dr-ui/src/library_ui.rs:4874`](../ui/dr-ui/src/library_ui.rs#L4874), [`ui/dr-ui/src/library_ui.rs:4927`](../ui/dr-ui/src/library_ui.rs#L4927), [`ui/dr-ui/src/library_ui.rs:5991`](../ui/dr-ui/src/library_ui.rs#L5991), [`ui/dr-ui/ui/app.slint:461`](../ui/dr-ui/ui/app.slint#L461), [`ui/dr-ui/ui/app.slint:585`](../ui/dr-ui/ui/app.slint#L585), [`ui/dr-ui/ui/app.slint:814`](../ui/dr-ui/ui/app.slint#L814), [`ui/dr-ui/ui/library.slint:109`](../ui/dr-ui/ui/library.slint#L109), [`ui/dr-ui/ui/library.slint:1264`](../ui/dr-ui/ui/library.slint#L1264), [`ui/dr-ui/ui/library.slint:893`](../ui/dr-ui/ui/library.slint#L893), [`ui/dr-ui/ui/settings.slint:115`](../ui/dr-ui/ui/settings.slint#L115) |
+| FR-CAT-7 | [`core/dr-catalog/src/collections.rs:1`](../core/dr-catalog/src/collections.rs#L1), [`core/dr-catalog/src/merge.rs:1`](../core/dr-catalog/src/merge.rs#L1), [`core/dr-catalog/src/sync.rs:1`](../core/dr-catalog/src/sync.rs#L1), [`core/dr-types/src/selector.rs:1`](../core/dr-types/src/selector.rs#L1), [`ui/dr-ui/src/collections_ui.rs:1634`](../ui/dr-ui/src/collections_ui.rs#L1634), [`ui/dr-ui/src/collections_ui.rs:1`](../ui/dr-ui/src/collections_ui.rs#L1), [`ui/dr-ui/src/derived_sync.rs:1`](../ui/dr-ui/src/derived_sync.rs#L1), [`ui/dr-ui/src/library_ui.rs:3267`](../ui/dr-ui/src/library_ui.rs#L3267), [`ui/dr-ui/src/library_ui.rs:3930`](../ui/dr-ui/src/library_ui.rs#L3930), [`ui/dr-ui/ui/app.slint:580`](../ui/dr-ui/ui/app.slint#L580), [`ui/dr-ui/ui/collections.slint:4`](../ui/dr-ui/ui/collections.slint#L4), [`ui/dr-ui/ui/library.slint:2496`](../ui/dr-ui/ui/library.slint#L2496), [`ui/dr-ui/ui/library.slint:864`](../ui/dr-ui/ui/library.slint#L864), [`ui/dr-ui/ui/library.slint:883`](../ui/dr-ui/ui/library.slint#L883) |
+| FR-CAT-8 | [`core/dr-pipeline/src/ops/curve.rs:136`](../core/dr-pipeline/src/ops/curve.rs#L136), [`core/dr-pipeline/src/ops/curve.rs:652`](../core/dr-pipeline/src/ops/curve.rs#L652), [`core/dr-pipeline/src/sidecar.rs:1273`](../core/dr-pipeline/src/sidecar.rs#L1273), [`core/dr-pipeline/src/sidecar.rs:90`](../core/dr-pipeline/src/sidecar.rs#L90), [`core/dr-pipeline/tests/tone_curve.rs:33`](../core/dr-pipeline/tests/tone_curve.rs#L33), [`ui/dr-ui/src/develop.rs:2600`](../ui/dr-ui/src/develop.rs#L2600), [`ui/dr-ui/src/develop.rs:2628`](../ui/dr-ui/src/develop.rs#L2628), [`ui/dr-ui/src/export.rs:749`](../ui/dr-ui/src/export.rs#L749), [`ui/dr-ui/src/lib.rs:1181`](../ui/dr-ui/src/lib.rs#L1181), [`ui/dr-ui/src/lib.rs:1521`](../ui/dr-ui/src/lib.rs#L1521), [`ui/dr-ui/src/lib.rs:1626`](../ui/dr-ui/src/lib.rs#L1626), [`ui/dr-ui/src/lib.rs:464`](../ui/dr-ui/src/lib.rs#L464), [`ui/dr-ui/src/lib.rs:796`](../ui/dr-ui/src/lib.rs#L796), [`ui/dr-ui/src/library.rs:1504`](../ui/dr-ui/src/library.rs#L1504), [`ui/dr-ui/src/library.rs:340`](../ui/dr-ui/src/library.rs#L340), [`ui/dr-ui/src/library.rs:378`](../ui/dr-ui/src/library.rs#L378), [`ui/dr-ui/src/library.rs:415`](../ui/dr-ui/src/library.rs#L415), [`ui/dr-ui/src/library.rs:655`](../ui/dr-ui/src/library.rs#L655), [`ui/dr-ui/src/library_ui.rs:4617`](../ui/dr-ui/src/library_ui.rs#L4617), [`ui/dr-ui/src/sidecar_cache.rs:1`](../ui/dr-ui/src/sidecar_cache.rs#L1) |
+| FR-CAT-9 | [`core/dr-catalog/src/cache.rs:1`](../core/dr-catalog/src/cache.rs#L1), [`core/dr-catalog/src/scan.rs:1`](../core/dr-catalog/src/scan.rs#L1), [`core/dr-catalog/src/schema.rs:337`](../core/dr-catalog/src/schema.rs#L337), [`core/dr-catalog/src/walk.rs:162`](../core/dr-catalog/src/walk.rs#L162), [`core/dr-catalog/src/walk.rs:1`](../core/dr-catalog/src/walk.rs#L1), [`core/dr-catalog/src/walk.rs:435`](../core/dr-catalog/src/walk.rs#L435), [`core/dr-catalog/src/walk.rs:704`](../core/dr-catalog/src/walk.rs#L704), [`core/dr-sync-nextcloud/src/desktop_client.rs:30`](../core/dr-sync-nextcloud/src/desktop_client.rs#L30), [`core/dr-sync/src/reachability.rs:1`](../core/dr-sync/src/reachability.rs#L1), [`core/dr-types/src/lib.rs:119`](../core/dr-types/src/lib.rs#L119), [`ui/dr-ui/src/develop.rs:2325`](../ui/dr-ui/src/develop.rs#L2325), [`ui/dr-ui/src/library.rs:138`](../ui/dr-ui/src/library.rs#L138), [`ui/dr-ui/src/library.rs:1464`](../ui/dr-ui/src/library.rs#L1464), [`ui/dr-ui/src/library.rs:1541`](../ui/dr-ui/src/library.rs#L1541), [`ui/dr-ui/src/library.rs:196`](../ui/dr-ui/src/library.rs#L196), [`ui/dr-ui/src/library.rs:3230`](../ui/dr-ui/src/library.rs#L3230), [`ui/dr-ui/src/library.rs:415`](../ui/dr-ui/src/library.rs#L415), [`ui/dr-ui/src/library.rs:639`](../ui/dr-ui/src/library.rs#L639), [`ui/dr-ui/src/library.rs:655`](../ui/dr-ui/src/library.rs#L655), [`ui/dr-ui/src/library.rs:709`](../ui/dr-ui/src/library.rs#L709), [`ui/dr-ui/src/library_ui.rs:1473`](../ui/dr-ui/src/library_ui.rs#L1473), [`ui/dr-ui/src/library_ui.rs:1499`](../ui/dr-ui/src/library_ui.rs#L1499), [`ui/dr-ui/src/library_ui.rs:1515`](../ui/dr-ui/src/library_ui.rs#L1515), [`ui/dr-ui/src/library_ui.rs:1609`](../ui/dr-ui/src/library_ui.rs#L1609), [`ui/dr-ui/src/library_ui.rs:170`](../ui/dr-ui/src/library_ui.rs#L170), [`ui/dr-ui/src/library_ui.rs:203`](../ui/dr-ui/src/library_ui.rs#L203), [`ui/dr-ui/src/library_ui.rs:2162`](../ui/dr-ui/src/library_ui.rs#L2162), [`ui/dr-ui/src/library_ui.rs:2595`](../ui/dr-ui/src/library_ui.rs#L2595), [`ui/dr-ui/src/library_ui.rs:2777`](../ui/dr-ui/src/library_ui.rs#L2777), [`ui/dr-ui/src/library_ui.rs:3058`](../ui/dr-ui/src/library_ui.rs#L3058), [`ui/dr-ui/src/library_ui.rs:3130`](../ui/dr-ui/src/library_ui.rs#L3130), [`ui/dr-ui/src/library_ui.rs:3318`](../ui/dr-ui/src/library_ui.rs#L3318), [`ui/dr-ui/src/library_ui.rs:3436`](../ui/dr-ui/src/library_ui.rs#L3436), [`ui/dr-ui/src/library_ui.rs:381`](../ui/dr-ui/src/library_ui.rs#L381), [`ui/dr-ui/src/library_ui.rs:439`](../ui/dr-ui/src/library_ui.rs#L439), [`ui/dr-ui/src/library_ui.rs:4972`](../ui/dr-ui/src/library_ui.rs#L4972), [`ui/dr-ui/src/library_ui.rs:5087`](../ui/dr-ui/src/library_ui.rs#L5087), [`ui/dr-ui/src/presets.rs:309`](../ui/dr-ui/src/presets.rs#L309), [`ui/dr-ui/src/presets.rs:321`](../ui/dr-ui/src/presets.rs#L321), [`ui/dr-ui/src/sidecar_cache.rs:1`](../ui/dr-ui/src/sidecar_cache.rs#L1) |
 | FR-CULL-1 | [`core/dr-decode/src/preview.rs:134`](../core/dr-decode/src/preview.rs#L134) |
 | FR-CULL-2 | [`core/dr-decode/src/locate.rs:1`](../core/dr-decode/src/locate.rs#L1), [`core/dr-decode/src/preview.rs:161`](../core/dr-decode/src/preview.rs#L161), [`ui/dr-ui/src/import.rs:464`](../ui/dr-ui/src/import.rs#L464) |
 | FR-CULL-4 | [`core/dr-catalog/src/rating.rs:1`](../core/dr-catalog/src/rating.rs#L1), [`core/dr-pipeline/src/sidecar.rs:126`](../core/dr-pipeline/src/sidecar.rs#L126), [`ui/dr-ui/src/library.rs:179`](../ui/dr-ui/src/library.rs#L179), [`ui/dr-ui/src/library.rs:340`](../ui/dr-ui/src/library.rs#L340) |
 | FR-DEV-2 | [`core/dr-pipeline/src/operation.rs:318`](../core/dr-pipeline/src/operation.rs#L318) |
-| FR-DEV-3 | [`core/dr-gpu/src/adjust.rs:1860`](../core/dr-gpu/src/adjust.rs#L1860), [`core/dr-gpu/src/adjust.rs:395`](../core/dr-gpu/src/adjust.rs#L395), [`core/dr-gpu/src/adjust.rs:506`](../core/dr-gpu/src/adjust.rs#L506), [`core/dr-gpu/src/adjust.rs:77`](../core/dr-gpu/src/adjust.rs#L77), [`core/dr-gpu/tests/tone_curve.rs:1`](../core/dr-gpu/tests/tone_curve.rs#L1), [`core/dr-pipeline/src/detail.rs:364`](../core/dr-pipeline/src/detail.rs#L364), [`core/dr-pipeline/src/detail.rs:439`](../core/dr-pipeline/src/detail.rs#L439), [`core/dr-pipeline/src/framing.rs:188`](../core/dr-pipeline/src/framing.rs#L188), [`core/dr-pipeline/src/framing.rs:602`](../core/dr-pipeline/src/framing.rs#L602), [`core/dr-pipeline/src/graph.rs:120`](../core/dr-pipeline/src/graph.rs#L120), [`core/dr-pipeline/src/graph.rs:397`](../core/dr-pipeline/src/graph.rs#L397), [`core/dr-pipeline/src/mask.rs:120`](../core/dr-pipeline/src/mask.rs#L120), [`core/dr-pipeline/src/operation.rs:265`](../core/dr-pipeline/src/operation.rs#L265), [`core/dr-pipeline/src/operation.rs:439`](../core/dr-pipeline/src/operation.rs#L439), [`core/dr-pipeline/src/ops/capture_sharpen.rs:1`](../core/dr-pipeline/src/ops/capture_sharpen.rs#L1), [`core/dr-pipeline/src/ops/capture_sharpen.rs:207`](../core/dr-pipeline/src/ops/capture_sharpen.rs#L207), [`core/dr-pipeline/src/ops/curve.rs:1`](../core/dr-pipeline/src/ops/curve.rs#L1), [`core/dr-pipeline/src/ops/curve.rs:218`](../core/dr-pipeline/src/ops/curve.rs#L218), [`core/dr-pipeline/src/ops/curve.rs:631`](../core/dr-pipeline/src/ops/curve.rs#L631), [`core/dr-pipeline/src/ops/curve.rs:99`](../core/dr-pipeline/src/ops/curve.rs#L99), [`core/dr-pipeline/src/ops/local_contrast.rs:1`](../core/dr-pipeline/src/ops/local_contrast.rs#L1), [`core/dr-pipeline/src/ops/noise_reduction.rs:1`](../core/dr-pipeline/src/ops/noise_reduction.rs#L1), [`core/dr-pipeline/src/ops/noise_reduction.rs:270`](../core/dr-pipeline/src/ops/noise_reduction.rs#L270), [`core/dr-pipeline/src/sidecar.rs:1273`](../core/dr-pipeline/src/sidecar.rs#L1273), [`core/dr-pipeline/src/sidecar.rs:1329`](../core/dr-pipeline/src/sidecar.rs#L1329), [`core/dr-pipeline/src/sidecar.rs:147`](../core/dr-pipeline/src/sidecar.rs#L147), [`core/dr-pipeline/tests/tone_curve.rs:1`](../core/dr-pipeline/tests/tone_curve.rs#L1), [`ui/dr-ui/src/develop.rs:101`](../ui/dr-ui/src/develop.rs#L101), [`ui/dr-ui/src/develop.rs:1111`](../ui/dr-ui/src/develop.rs#L1111), [`ui/dr-ui/src/develop.rs:132`](../ui/dr-ui/src/develop.rs#L132), [`ui/dr-ui/src/develop.rs:1584`](../ui/dr-ui/src/develop.rs#L1584), [`ui/dr-ui/src/develop.rs:1599`](../ui/dr-ui/src/develop.rs#L1599), [`ui/dr-ui/src/develop.rs:1621`](../ui/dr-ui/src/develop.rs#L1621), [`ui/dr-ui/src/develop.rs:1753`](../ui/dr-ui/src/develop.rs#L1753), [`ui/dr-ui/src/develop.rs:1831`](../ui/dr-ui/src/develop.rs#L1831), [`ui/dr-ui/src/develop.rs:238`](../ui/dr-ui/src/develop.rs#L238), [`ui/dr-ui/src/develop.rs:2600`](../ui/dr-ui/src/develop.rs#L2600), [`ui/dr-ui/src/develop.rs:270`](../ui/dr-ui/src/develop.rs#L270), [`ui/dr-ui/src/develop.rs:2984`](../ui/dr-ui/src/develop.rs#L2984), [`ui/dr-ui/src/develop.rs:3038`](../ui/dr-ui/src/develop.rs#L3038), [`ui/dr-ui/src/develop.rs:3082`](../ui/dr-ui/src/develop.rs#L3082), [`ui/dr-ui/src/develop.rs:3132`](../ui/dr-ui/src/develop.rs#L3132), [`ui/dr-ui/src/develop.rs:506`](../ui/dr-ui/src/develop.rs#L506), [`ui/dr-ui/src/develop.rs:544`](../ui/dr-ui/src/develop.rs#L544), [`ui/dr-ui/src/lib.rs:1205`](../ui/dr-ui/src/lib.rs#L1205), [`ui/dr-ui/src/lib.rs:1857`](../ui/dr-ui/src/lib.rs#L1857), [`ui/dr-ui/src/lib.rs:290`](../ui/dr-ui/src/lib.rs#L290), [`ui/dr-ui/src/library.rs:378`](../ui/dr-ui/src/library.rs#L378), [`ui/dr-ui/src/masks_ui.rs:218`](../ui/dr-ui/src/masks_ui.rs#L218), [`ui/dr-ui/src/masks_ui.rs:41`](../ui/dr-ui/src/masks_ui.rs#L41), [`ui/dr-ui/src/masks_ui.rs:816`](../ui/dr-ui/src/masks_ui.rs#L816), [`ui/dr-ui/src/masks_ui.rs:930`](../ui/dr-ui/src/masks_ui.rs#L930), [`ui/dr-ui/src/segmentation.rs:218`](../ui/dr-ui/src/segmentation.rs#L218), [`ui/dr-ui/ui/app.slint:1885`](../ui/dr-ui/ui/app.slint#L1885), [`ui/dr-ui/ui/app.slint:891`](../ui/dr-ui/ui/app.slint#L891) |
+| FR-DEV-3 | [`core/dr-gpu/src/adjust.rs:1860`](../core/dr-gpu/src/adjust.rs#L1860), [`core/dr-gpu/src/adjust.rs:395`](../core/dr-gpu/src/adjust.rs#L395), [`core/dr-gpu/src/adjust.rs:506`](../core/dr-gpu/src/adjust.rs#L506), [`core/dr-gpu/src/adjust.rs:77`](../core/dr-gpu/src/adjust.rs#L77), [`core/dr-gpu/tests/tone_curve.rs:1`](../core/dr-gpu/tests/tone_curve.rs#L1), [`core/dr-pipeline/src/detail.rs:364`](../core/dr-pipeline/src/detail.rs#L364), [`core/dr-pipeline/src/detail.rs:439`](../core/dr-pipeline/src/detail.rs#L439), [`core/dr-pipeline/src/framing.rs:188`](../core/dr-pipeline/src/framing.rs#L188), [`core/dr-pipeline/src/framing.rs:602`](../core/dr-pipeline/src/framing.rs#L602), [`core/dr-pipeline/src/graph.rs:120`](../core/dr-pipeline/src/graph.rs#L120), [`core/dr-pipeline/src/graph.rs:397`](../core/dr-pipeline/src/graph.rs#L397), [`core/dr-pipeline/src/mask.rs:120`](../core/dr-pipeline/src/mask.rs#L120), [`core/dr-pipeline/src/operation.rs:265`](../core/dr-pipeline/src/operation.rs#L265), [`core/dr-pipeline/src/operation.rs:439`](../core/dr-pipeline/src/operation.rs#L439), [`core/dr-pipeline/src/ops/capture_sharpen.rs:1`](../core/dr-pipeline/src/ops/capture_sharpen.rs#L1), [`core/dr-pipeline/src/ops/capture_sharpen.rs:207`](../core/dr-pipeline/src/ops/capture_sharpen.rs#L207), [`core/dr-pipeline/src/ops/curve.rs:1`](../core/dr-pipeline/src/ops/curve.rs#L1), [`core/dr-pipeline/src/ops/curve.rs:218`](../core/dr-pipeline/src/ops/curve.rs#L218), [`core/dr-pipeline/src/ops/curve.rs:631`](../core/dr-pipeline/src/ops/curve.rs#L631), [`core/dr-pipeline/src/ops/curve.rs:99`](../core/dr-pipeline/src/ops/curve.rs#L99), [`core/dr-pipeline/src/ops/local_contrast.rs:1`](../core/dr-pipeline/src/ops/local_contrast.rs#L1), [`core/dr-pipeline/src/ops/noise_reduction.rs:1`](../core/dr-pipeline/src/ops/noise_reduction.rs#L1), [`core/dr-pipeline/src/ops/noise_reduction.rs:270`](../core/dr-pipeline/src/ops/noise_reduction.rs#L270), [`core/dr-pipeline/src/sidecar.rs:1273`](../core/dr-pipeline/src/sidecar.rs#L1273), [`core/dr-pipeline/src/sidecar.rs:1329`](../core/dr-pipeline/src/sidecar.rs#L1329), [`core/dr-pipeline/src/sidecar.rs:147`](../core/dr-pipeline/src/sidecar.rs#L147), [`core/dr-pipeline/tests/tone_curve.rs:1`](../core/dr-pipeline/tests/tone_curve.rs#L1), [`ui/dr-ui/src/develop.rs:101`](../ui/dr-ui/src/develop.rs#L101), [`ui/dr-ui/src/develop.rs:1111`](../ui/dr-ui/src/develop.rs#L1111), [`ui/dr-ui/src/develop.rs:132`](../ui/dr-ui/src/develop.rs#L132), [`ui/dr-ui/src/develop.rs:1584`](../ui/dr-ui/src/develop.rs#L1584), [`ui/dr-ui/src/develop.rs:1599`](../ui/dr-ui/src/develop.rs#L1599), [`ui/dr-ui/src/develop.rs:1621`](../ui/dr-ui/src/develop.rs#L1621), [`ui/dr-ui/src/develop.rs:1753`](../ui/dr-ui/src/develop.rs#L1753), [`ui/dr-ui/src/develop.rs:1831`](../ui/dr-ui/src/develop.rs#L1831), [`ui/dr-ui/src/develop.rs:238`](../ui/dr-ui/src/develop.rs#L238), [`ui/dr-ui/src/develop.rs:2600`](../ui/dr-ui/src/develop.rs#L2600), [`ui/dr-ui/src/develop.rs:270`](../ui/dr-ui/src/develop.rs#L270), [`ui/dr-ui/src/develop.rs:2984`](../ui/dr-ui/src/develop.rs#L2984), [`ui/dr-ui/src/develop.rs:3038`](../ui/dr-ui/src/develop.rs#L3038), [`ui/dr-ui/src/develop.rs:3082`](../ui/dr-ui/src/develop.rs#L3082), [`ui/dr-ui/src/develop.rs:3132`](../ui/dr-ui/src/develop.rs#L3132), [`ui/dr-ui/src/develop.rs:506`](../ui/dr-ui/src/develop.rs#L506), [`ui/dr-ui/src/develop.rs:544`](../ui/dr-ui/src/develop.rs#L544), [`ui/dr-ui/src/lib.rs:1217`](../ui/dr-ui/src/lib.rs#L1217), [`ui/dr-ui/src/lib.rs:1869`](../ui/dr-ui/src/lib.rs#L1869), [`ui/dr-ui/src/lib.rs:290`](../ui/dr-ui/src/lib.rs#L290), [`ui/dr-ui/src/library.rs:378`](../ui/dr-ui/src/library.rs#L378), [`ui/dr-ui/src/masks_ui.rs:218`](../ui/dr-ui/src/masks_ui.rs#L218), [`ui/dr-ui/src/masks_ui.rs:41`](../ui/dr-ui/src/masks_ui.rs#L41), [`ui/dr-ui/src/masks_ui.rs:816`](../ui/dr-ui/src/masks_ui.rs#L816), [`ui/dr-ui/src/masks_ui.rs:930`](../ui/dr-ui/src/masks_ui.rs#L930), [`ui/dr-ui/src/segmentation.rs:218`](../ui/dr-ui/src/segmentation.rs#L218), [`ui/dr-ui/ui/app.slint:1903`](../ui/dr-ui/ui/app.slint#L1903), [`ui/dr-ui/ui/app.slint:901`](../ui/dr-ui/ui/app.slint#L901) |
 | FR-DEV-3a | [`core/dr-pipeline/build.rs:1807`](../core/dr-pipeline/build.rs#L1807), [`core/dr-pipeline/ops/exposure.yaml:1`](../core/dr-pipeline/ops/exposure.yaml#L1), [`core/dr-pipeline/src/descriptor.rs:117`](../core/dr-pipeline/src/descriptor.rs#L117), [`core/dr-pipeline/src/descriptor.rs:157`](../core/dr-pipeline/src/descriptor.rs#L157), [`core/dr-pipeline/src/descriptor.rs:177`](../core/dr-pipeline/src/descriptor.rs#L177), [`core/dr-pipeline/src/descriptor.rs:232`](../core/dr-pipeline/src/descriptor.rs#L232), [`core/dr-pipeline/src/framing.rs:259`](../core/dr-pipeline/src/framing.rs#L259), [`core/dr-pipeline/src/graph.rs:184`](../core/dr-pipeline/src/graph.rs#L184), [`core/dr-pipeline/src/graph.rs:18`](../core/dr-pipeline/src/graph.rs#L18), [`core/dr-pipeline/src/graph.rs:40`](../core/dr-pipeline/src/graph.rs#L40), [`core/dr-pipeline/src/graph.rs:53`](../core/dr-pipeline/src/graph.rs#L53), [`core/dr-pipeline/src/mask.rs:954`](../core/dr-pipeline/src/mask.rs#L954), [`core/dr-pipeline/src/operation.rs:294`](../core/dr-pipeline/src/operation.rs#L294), [`core/dr-pipeline/src/ops/curve.rs:318`](../core/dr-pipeline/src/ops/curve.rs#L318), [`ui/dr-ui/src/develop.rs:1008`](../ui/dr-ui/src/develop.rs#L1008), [`ui/dr-ui/src/lib.rs:526`](../ui/dr-ui/src/lib.rs#L526) |
 | FR-DEV-3b | [`core/dr-pipeline/src/descriptor.rs:177`](../core/dr-pipeline/src/descriptor.rs#L177), [`core/dr-pipeline/src/framing.rs:259`](../core/dr-pipeline/src/framing.rs#L259), [`core/dr-pipeline/src/graph.rs:53`](../core/dr-pipeline/src/graph.rs#L53), [`core/dr-pipeline/src/operation.rs:294`](../core/dr-pipeline/src/operation.rs#L294) |
 | FR-DEV-3c | [`core/dr-pipeline/build.rs:1807`](../core/dr-pipeline/build.rs#L1807), [`core/dr-pipeline/ops/exposure.yaml:1`](../core/dr-pipeline/ops/exposure.yaml#L1), [`core/dr-pipeline/src/graph.rs:184`](../core/dr-pipeline/src/graph.rs#L184), [`core/dr-pipeline/src/graph.rs:40`](../core/dr-pipeline/src/graph.rs#L40), [`core/dr-pipeline/src/mask.rs:954`](../core/dr-pipeline/src/mask.rs#L954), [`ui/dr-ui/src/develop.rs:3711`](../ui/dr-ui/src/develop.rs#L3711) |
@@ -60,36 +60,36 @@ _None._
 | FR-DEV-3e | [`core/dr-decode/src/base_curve.rs:145`](../core/dr-decode/src/base_curve.rs#L145), [`core/dr-decode/src/base_curve.rs:158`](../core/dr-decode/src/base_curve.rs#L158), [`core/dr-decode/src/base_curve.rs:1`](../core/dr-decode/src/base_curve.rs#L1), [`core/dr-decode/src/base_curve.rs:267`](../core/dr-decode/src/base_curve.rs#L267), [`core/dr-decode/src/base_curve.rs:347`](../core/dr-decode/src/base_curve.rs#L347), [`core/dr-decode/src/base_curve.rs:55`](../core/dr-decode/src/base_curve.rs#L55), [`core/dr-decode/src/lib.rs:121`](../core/dr-decode/src/lib.rs#L121), [`core/dr-decode/src/lib.rs:708`](../core/dr-decode/src/lib.rs#L708), [`core/dr-decode/src/lib.rs:748`](../core/dr-decode/src/lib.rs#L748), [`core/dr-decode/src/profile.rs:102`](../core/dr-decode/src/profile.rs#L102), [`core/dr-decode/src/profile.rs:151`](../core/dr-decode/src/profile.rs#L151), [`core/dr-decode/src/profile.rs:1`](../core/dr-decode/src/profile.rs#L1), [`core/dr-decode/src/profile.rs:235`](../core/dr-decode/src/profile.rs#L235), [`core/dr-decode/src/profile.rs:286`](../core/dr-decode/src/profile.rs#L286), [`core/dr-decode/src/profile.rs:343`](../core/dr-decode/src/profile.rs#L343), [`core/dr-decode/src/profile.rs:458`](../core/dr-decode/src/profile.rs#L458), [`core/dr-decode/src/profile.rs:492`](../core/dr-decode/src/profile.rs#L492), [`core/dr-decode/src/profile.rs:630`](../core/dr-decode/src/profile.rs#L630), [`core/dr-gpu/src/adjust.rs:37`](../core/dr-gpu/src/adjust.rs#L37), [`core/dr-gpu/src/adjust.rs:690`](../core/dr-gpu/src/adjust.rs#L690), [`core/dr-gpu/src/demosaic.rs:121`](../core/dr-gpu/src/demosaic.rs#L121), [`core/dr-gpu/src/demosaic.rs:86`](../core/dr-gpu/src/demosaic.rs#L86), [`core/dr-gpu/tests/base_curve.rs:1`](../core/dr-gpu/tests/base_curve.rs#L1), [`core/dr-pipeline/src/operation.rs:1341`](../core/dr-pipeline/src/operation.rs#L1341), [`core/dr-pipeline/src/operation.rs:1366`](../core/dr-pipeline/src/operation.rs#L1366), [`core/dr-pipeline/src/operation.rs:1381`](../core/dr-pipeline/src/operation.rs#L1381), [`core/dr-pipeline/src/operation.rs:1405`](../core/dr-pipeline/src/operation.rs#L1405), [`core/dr-pipeline/src/operation.rs:369`](../core/dr-pipeline/src/operation.rs#L369), [`core/dr-pipeline/src/operation.rs:379`](../core/dr-pipeline/src/operation.rs#L379), [`core/dr-pipeline/src/operation.rs:510`](../core/dr-pipeline/src/operation.rs#L510) |
 | FR-DEV-3h | [`core/dr-decode/src/lib.rs:404`](../core/dr-decode/src/lib.rs#L404), [`core/dr-decode/src/preview.rs:29`](../core/dr-decode/src/preview.rs#L29), [`core/dr-pipeline/src/framing.rs:202`](../core/dr-pipeline/src/framing.rs#L202), [`core/dr-types/src/lib.rs:336`](../core/dr-types/src/lib.rs#L336) |
 | FR-DEV-4 | [`core/dr-gpu/src/adjust.rs:506`](../core/dr-gpu/src/adjust.rs#L506), [`core/dr-gpu/src/lib.rs:217`](../core/dr-gpu/src/lib.rs#L217) |
-| FR-DEV-5 | [`core/dr-pipeline/src/history.rs:124`](../core/dr-pipeline/src/history.rs#L124), [`core/dr-pipeline/src/history.rs:1`](../core/dr-pipeline/src/history.rs#L1), [`core/dr-pipeline/src/history.rs:55`](../core/dr-pipeline/src/history.rs#L55), [`core/dr-pipeline/src/history.rs:71`](../core/dr-pipeline/src/history.rs#L71), [`core/dr-pipeline/src/history.rs:79`](../core/dr-pipeline/src/history.rs#L79), [`ui/dr-ui/src/develop.rs:2644`](../ui/dr-ui/src/develop.rs#L2644), [`ui/dr-ui/src/develop.rs:2654`](../ui/dr-ui/src/develop.rs#L2654), [`ui/dr-ui/src/develop.rs:488`](../ui/dr-ui/src/develop.rs#L488), [`ui/dr-ui/src/lib.rs:1197`](../ui/dr-ui/src/lib.rs#L1197) |
-| FR-DEV-6 | [`core/dr-pipeline/src/preset.rs:1`](../core/dr-pipeline/src/preset.rs#L1), [`core/dr-types/src/settings.rs:128`](../core/dr-types/src/settings.rs#L128), [`ui/dr-ui/src/develop.rs:2594`](../ui/dr-ui/src/develop.rs#L2594), [`ui/dr-ui/src/develop.rs:2615`](../ui/dr-ui/src/develop.rs#L2615), [`ui/dr-ui/src/lib.rs:1169`](../ui/dr-ui/src/lib.rs#L1169), [`ui/dr-ui/src/library.rs:1504`](../ui/dr-ui/src/library.rs#L1504), [`ui/dr-ui/src/library.rs:340`](../ui/dr-ui/src/library.rs#L340), [`ui/dr-ui/src/library.rs:368`](../ui/dr-ui/src/library.rs#L368), [`ui/dr-ui/src/library_ui.rs:2379`](../ui/dr-ui/src/library_ui.rs#L2379), [`ui/dr-ui/src/library_ui.rs:2734`](../ui/dr-ui/src/library_ui.rs#L2734), [`ui/dr-ui/src/library_ui.rs:384`](../ui/dr-ui/src/library_ui.rs#L384), [`ui/dr-ui/src/presets.rs:1`](../ui/dr-ui/src/presets.rs#L1), [`ui/dr-ui/src/settings_ui.rs:506`](../ui/dr-ui/src/settings_ui.rs#L506), [`ui/dr-ui/ui/adjust.slint:598`](../ui/dr-ui/ui/adjust.slint#L598), [`ui/dr-ui/ui/library.slint:1124`](../ui/dr-ui/ui/library.slint#L1124), [`ui/dr-ui/ui/library.slint:666`](../ui/dr-ui/ui/library.slint#L666), [`ui/dr-ui/ui/library.slint:747`](../ui/dr-ui/ui/library.slint#L747), [`ui/dr-ui/ui/settings.slint:87`](../ui/dr-ui/ui/settings.slint#L87) |
+| FR-DEV-5 | [`core/dr-pipeline/src/history.rs:124`](../core/dr-pipeline/src/history.rs#L124), [`core/dr-pipeline/src/history.rs:1`](../core/dr-pipeline/src/history.rs#L1), [`core/dr-pipeline/src/history.rs:55`](../core/dr-pipeline/src/history.rs#L55), [`core/dr-pipeline/src/history.rs:71`](../core/dr-pipeline/src/history.rs#L71), [`core/dr-pipeline/src/history.rs:79`](../core/dr-pipeline/src/history.rs#L79), [`ui/dr-ui/src/develop.rs:2644`](../ui/dr-ui/src/develop.rs#L2644), [`ui/dr-ui/src/develop.rs:2654`](../ui/dr-ui/src/develop.rs#L2654), [`ui/dr-ui/src/develop.rs:488`](../ui/dr-ui/src/develop.rs#L488), [`ui/dr-ui/src/lib.rs:1209`](../ui/dr-ui/src/lib.rs#L1209) |
+| FR-DEV-6 | [`core/dr-pipeline/src/preset.rs:1`](../core/dr-pipeline/src/preset.rs#L1), [`core/dr-types/src/settings.rs:182`](../core/dr-types/src/settings.rs#L182), [`ui/dr-ui/src/develop.rs:2594`](../ui/dr-ui/src/develop.rs#L2594), [`ui/dr-ui/src/develop.rs:2615`](../ui/dr-ui/src/develop.rs#L2615), [`ui/dr-ui/src/lib.rs:1181`](../ui/dr-ui/src/lib.rs#L1181), [`ui/dr-ui/src/library.rs:1504`](../ui/dr-ui/src/library.rs#L1504), [`ui/dr-ui/src/library.rs:340`](../ui/dr-ui/src/library.rs#L340), [`ui/dr-ui/src/library.rs:368`](../ui/dr-ui/src/library.rs#L368), [`ui/dr-ui/src/library_ui.rs:2422`](../ui/dr-ui/src/library_ui.rs#L2422), [`ui/dr-ui/src/library_ui.rs:2777`](../ui/dr-ui/src/library_ui.rs#L2777), [`ui/dr-ui/src/library_ui.rs:407`](../ui/dr-ui/src/library_ui.rs#L407), [`ui/dr-ui/src/presets.rs:1`](../ui/dr-ui/src/presets.rs#L1), [`ui/dr-ui/src/settings_ui.rs:535`](../ui/dr-ui/src/settings_ui.rs#L535), [`ui/dr-ui/ui/adjust.slint:598`](../ui/dr-ui/ui/adjust.slint#L598), [`ui/dr-ui/ui/library.slint:1291`](../ui/dr-ui/ui/library.slint#L1291), [`ui/dr-ui/ui/library.slint:823`](../ui/dr-ui/ui/library.slint#L823), [`ui/dr-ui/ui/library.slint:904`](../ui/dr-ui/ui/library.slint#L904), [`ui/dr-ui/ui/settings.slint:87`](../ui/dr-ui/ui/settings.slint#L87) |
 | FR-DEV-8 | [`core/dr-pipeline/src/detail.rs:364`](../core/dr-pipeline/src/detail.rs#L364), [`core/dr-pipeline/src/operation.rs:265`](../core/dr-pipeline/src/operation.rs#L265) |
 | FR-DSP-1 | [`core/dr-gpu/src/adjust.rs:1783`](../core/dr-gpu/src/adjust.rs#L1783), [`core/dr-gpu/src/adjust.rs:1860`](../core/dr-gpu/src/adjust.rs#L1860), [`core/dr-gpu/src/adjust.rs:1945`](../core/dr-gpu/src/adjust.rs#L1945), [`core/dr-gpu/src/adjust.rs:506`](../core/dr-gpu/src/adjust.rs#L506), [`core/dr-gpu/src/adjust.rs:54`](../core/dr-gpu/src/adjust.rs#L54), [`core/dr-gpu/src/lib.rs:54`](../core/dr-gpu/src/lib.rs#L54), [`core/dr-gpu/src/lib.rs:94`](../core/dr-gpu/src/lib.rs#L94), [`core/dr-gpu/tests/capture_sharpen.rs:199`](../core/dr-gpu/tests/capture_sharpen.rs#L199), [`core/dr-gpu/tests/detail_stage.rs:327`](../core/dr-gpu/tests/detail_stage.rs#L327), [`core/dr-gpu/tests/local_contrast.rs:262`](../core/dr-gpu/tests/local_contrast.rs#L262), [`core/dr-gpu/tests/noise_reduction.rs:377`](../core/dr-gpu/tests/noise_reduction.rs#L377), [`core/dr-pipeline/src/detail.rs:136`](../core/dr-pipeline/src/detail.rs#L136), [`core/dr-pipeline/src/detail.rs:439`](../core/dr-pipeline/src/detail.rs#L439), [`core/dr-pipeline/src/graph.rs:367`](../core/dr-pipeline/src/graph.rs#L367), [`core/dr-pipeline/src/graph.rs:397`](../core/dr-pipeline/src/graph.rs#L397), [`core/dr-pipeline/src/ops/capture_sharpen.rs:1`](../core/dr-pipeline/src/ops/capture_sharpen.rs#L1), [`core/dr-pipeline/src/ops/capture_sharpen.rs:647`](../core/dr-pipeline/src/ops/capture_sharpen.rs#L647), [`core/dr-pipeline/src/ops/local_contrast.rs:1`](../core/dr-pipeline/src/ops/local_contrast.rs#L1), [`core/dr-pipeline/src/ops/local_contrast.rs:658`](../core/dr-pipeline/src/ops/local_contrast.rs#L658), [`core/dr-pipeline/src/ops/noise_reduction.rs:691`](../core/dr-pipeline/src/ops/noise_reduction.rs#L691), [`ui/dr-ui/src/develop.rs:2161`](../ui/dr-ui/src/develop.rs#L2161), [`ui/dr-ui/src/develop.rs:2792`](../ui/dr-ui/src/develop.rs#L2792), [`ui/dr-ui/src/develop.rs:3256`](../ui/dr-ui/src/develop.rs#L3256), [`ui/dr-ui/src/develop.rs:3290`](../ui/dr-ui/src/develop.rs#L3290), [`ui/dr-ui/src/lib.rs:59`](../ui/dr-ui/src/lib.rs#L59), [`ui/dr-ui/src/lib.rs:667`](../ui/dr-ui/src/lib.rs#L667) |
 | FR-DSP-6 | [`core/dr-pipeline/src/operation.rs:412`](../core/dr-pipeline/src/operation.rs#L412), [`core/dr-types/src/colour.rs:1`](../core/dr-types/src/colour.rs#L1) |
-| FR-DSP-7 | [`core/dr-gpu/src/histogram.rs:147`](../core/dr-gpu/src/histogram.rs#L147), [`core/dr-gpu/src/histogram.rs:1`](../core/dr-gpu/src/histogram.rs#L1), [`core/dr-gpu/src/histogram.rs:281`](../core/dr-gpu/src/histogram.rs#L281), [`core/dr-gpu/src/histogram.rs:50`](../core/dr-gpu/src/histogram.rs#L50), [`core/dr-gpu/src/shaders/histogram.wgsl:1`](../core/dr-gpu/src/shaders/histogram.wgsl#L1), [`ui/dr-ui/src/develop.rs:2206`](../ui/dr-ui/src/develop.rs#L2206), [`ui/dr-ui/src/develop.rs:4358`](../ui/dr-ui/src/develop.rs#L4358), [`ui/dr-ui/src/develop.rs:4390`](../ui/dr-ui/src/develop.rs#L4390), [`ui/dr-ui/src/develop.rs:499`](../ui/dr-ui/src/develop.rs#L499), [`ui/dr-ui/src/histogram.rs:1`](../ui/dr-ui/src/histogram.rs#L1), [`ui/dr-ui/src/lib.rs:1256`](../ui/dr-ui/src/lib.rs#L1256), [`ui/dr-ui/src/lib.rs:285`](../ui/dr-ui/src/lib.rs#L285), [`ui/dr-ui/ui/app.slint:276`](../ui/dr-ui/ui/app.slint#L276), [`ui/dr-ui/ui/histogram.slint:122`](../ui/dr-ui/ui/histogram.slint#L122), [`ui/dr-ui/ui/histogram.slint:1`](../ui/dr-ui/ui/histogram.slint#L1) |
+| FR-DSP-7 | [`core/dr-gpu/src/histogram.rs:147`](../core/dr-gpu/src/histogram.rs#L147), [`core/dr-gpu/src/histogram.rs:1`](../core/dr-gpu/src/histogram.rs#L1), [`core/dr-gpu/src/histogram.rs:281`](../core/dr-gpu/src/histogram.rs#L281), [`core/dr-gpu/src/histogram.rs:50`](../core/dr-gpu/src/histogram.rs#L50), [`core/dr-gpu/src/shaders/histogram.wgsl:1`](../core/dr-gpu/src/shaders/histogram.wgsl#L1), [`ui/dr-ui/src/develop.rs:2206`](../ui/dr-ui/src/develop.rs#L2206), [`ui/dr-ui/src/develop.rs:4358`](../ui/dr-ui/src/develop.rs#L4358), [`ui/dr-ui/src/develop.rs:4390`](../ui/dr-ui/src/develop.rs#L4390), [`ui/dr-ui/src/develop.rs:499`](../ui/dr-ui/src/develop.rs#L499), [`ui/dr-ui/src/histogram.rs:1`](../ui/dr-ui/src/histogram.rs#L1), [`ui/dr-ui/src/lib.rs:1268`](../ui/dr-ui/src/lib.rs#L1268), [`ui/dr-ui/src/lib.rs:285`](../ui/dr-ui/src/lib.rs#L285), [`ui/dr-ui/ui/app.slint:276`](../ui/dr-ui/ui/app.slint#L276), [`ui/dr-ui/ui/histogram.slint:122`](../ui/dr-ui/ui/histogram.slint#L122), [`ui/dr-ui/ui/histogram.slint:1`](../ui/dr-ui/ui/histogram.slint#L1) |
 | FR-EXP-1 | [`core/dr-export/src/encode.rs:1`](../core/dr-export/src/encode.rs#L1), [`core/dr-export/src/lib.rs:1`](../core/dr-export/src/lib.rs#L1), [`core/dr-types/src/settings.rs:1`](../core/dr-types/src/settings.rs#L1), [`ui/dr-ui/src/settings_ui.rs:1`](../ui/dr-ui/src/settings_ui.rs#L1) |
-| FR-EXP-2 | [`core/dr-export/src/encode.rs:1`](../core/dr-export/src/encode.rs#L1), [`core/dr-export/src/error.rs:26`](../core/dr-export/src/error.rs#L26), [`core/dr-export/src/icc.rs:1`](../core/dr-export/src/icc.rs#L1), [`core/dr-export/src/lib.rs:153`](../core/dr-export/src/lib.rs#L153), [`core/dr-export/src/lib.rs:1`](../core/dr-export/src/lib.rs#L1), [`core/dr-export/src/lib.rs:53`](../core/dr-export/src/lib.rs#L53), [`core/dr-gpu/src/adjust.rs:2093`](../core/dr-gpu/src/adjust.rs#L2093), [`core/dr-pipeline/src/graph.rs:357`](../core/dr-pipeline/src/graph.rs#L357), [`core/dr-pipeline/src/graph.rs:410`](../core/dr-pipeline/src/graph.rs#L410), [`core/dr-pipeline/src/operation.rs:412`](../core/dr-pipeline/src/operation.rs#L412), [`core/dr-types/src/colour.rs:1`](../core/dr-types/src/colour.rs#L1), [`core/dr-types/src/settings.rs:1`](../core/dr-types/src/settings.rs#L1), [`core/dr-types/src/settings.rs:541`](../core/dr-types/src/settings.rs#L541), [`ui/dr-ui/src/settings_ui.rs:1`](../ui/dr-ui/src/settings_ui.rs#L1) |
+| FR-EXP-2 | [`core/dr-export/src/encode.rs:1`](../core/dr-export/src/encode.rs#L1), [`core/dr-export/src/error.rs:26`](../core/dr-export/src/error.rs#L26), [`core/dr-export/src/icc.rs:1`](../core/dr-export/src/icc.rs#L1), [`core/dr-export/src/lib.rs:153`](../core/dr-export/src/lib.rs#L153), [`core/dr-export/src/lib.rs:1`](../core/dr-export/src/lib.rs#L1), [`core/dr-export/src/lib.rs:53`](../core/dr-export/src/lib.rs#L53), [`core/dr-gpu/src/adjust.rs:2093`](../core/dr-gpu/src/adjust.rs#L2093), [`core/dr-pipeline/src/graph.rs:357`](../core/dr-pipeline/src/graph.rs#L357), [`core/dr-pipeline/src/graph.rs:410`](../core/dr-pipeline/src/graph.rs#L410), [`core/dr-pipeline/src/operation.rs:412`](../core/dr-pipeline/src/operation.rs#L412), [`core/dr-types/src/colour.rs:1`](../core/dr-types/src/colour.rs#L1), [`core/dr-types/src/settings.rs:1`](../core/dr-types/src/settings.rs#L1), [`core/dr-types/src/settings.rs:595`](../core/dr-types/src/settings.rs#L595), [`ui/dr-ui/src/settings_ui.rs:1`](../ui/dr-ui/src/settings_ui.rs#L1) |
 | FR-EXP-3 | [`core/dr-export/src/lib.rs:1`](../core/dr-export/src/lib.rs#L1), [`core/dr-export/src/size.rs:1`](../core/dr-export/src/size.rs#L1), [`core/dr-export/src/size.rs:25`](../core/dr-export/src/size.rs#L25), [`core/dr-types/src/settings.rs:1`](../core/dr-types/src/settings.rs#L1), [`ui/dr-ui/src/settings_ui.rs:1`](../ui/dr-ui/src/settings_ui.rs#L1) |
 | FR-EXP-4 | [`core/dr-export/src/lib.rs:1`](../core/dr-export/src/lib.rs#L1), [`core/dr-export/src/sharpen.rs:1`](../core/dr-export/src/sharpen.rs#L1), [`core/dr-export/src/size.rs:1`](../core/dr-export/src/size.rs#L1), [`ui/dr-ui/src/settings_ui.rs:1`](../ui/dr-ui/src/settings_ui.rs#L1) |
 | FR-EXP-5 | [`ui/dr-ui/src/settings_store.rs:1`](../ui/dr-ui/src/settings_store.rs#L1) |
-| FR-EXP-6 | [`core/dr-export/src/lib.rs:1`](../core/dr-export/src/lib.rs#L1), [`core/dr-export/src/name.rs:1`](../core/dr-export/src/name.rs#L1), [`core/dr-types/src/settings.rs:1`](../core/dr-types/src/settings.rs#L1), [`ui/dr-ui/src/export.rs:1`](../ui/dr-ui/src/export.rs#L1), [`ui/dr-ui/src/lib.rs:328`](../ui/dr-ui/src/lib.rs#L328), [`ui/dr-ui/src/settings_ui.rs:1`](../ui/dr-ui/src/settings_ui.rs#L1), [`ui/dr-ui/src/settings_ui.rs:48`](../ui/dr-ui/src/settings_ui.rs#L48), [`ui/dr-ui/src/settings_ui.rs:561`](../ui/dr-ui/src/settings_ui.rs#L561) |
-| FR-EXP-7 | [`ui/dr-ui/src/activity.rs:83`](../ui/dr-ui/src/activity.rs#L83), [`ui/dr-ui/src/export.rs:1`](../ui/dr-ui/src/export.rs#L1), [`ui/dr-ui/src/export.rs:941`](../ui/dr-ui/src/export.rs#L941), [`ui/dr-ui/src/lib.rs:175`](../ui/dr-ui/src/lib.rs#L175), [`ui/dr-ui/src/lib.rs:1780`](../ui/dr-ui/src/lib.rs#L1780), [`ui/dr-ui/src/lib.rs:328`](../ui/dr-ui/src/lib.rs#L328), [`ui/dr-ui/src/lib.rs:363`](../ui/dr-ui/src/lib.rs#L363), [`ui/dr-ui/src/lib.rs:390`](../ui/dr-ui/src/lib.rs#L390), [`ui/dr-ui/src/library_ui.rs:3104`](../ui/dr-ui/src/library_ui.rs#L3104), [`ui/dr-ui/src/library_ui.rs:475`](../ui/dr-ui/src/library_ui.rs#L475), [`ui/dr-ui/src/library_ui.rs:546`](../ui/dr-ui/src/library_ui.rs#L546), [`ui/dr-ui/src/library_ui.rs:5515`](../ui/dr-ui/src/library_ui.rs#L5515), [`ui/dr-ui/src/library_ui.rs:5592`](../ui/dr-ui/src/library_ui.rs#L5592), [`ui/dr-ui/src/library_ui.rs:5604`](../ui/dr-ui/src/library_ui.rs#L5604), [`ui/dr-ui/src/library_ui.rs:603`](../ui/dr-ui/src/library_ui.rs#L603), [`ui/dr-ui/ui/app.slint:1354`](../ui/dr-ui/ui/app.slint#L1354), [`ui/dr-ui/ui/app.slint:982`](../ui/dr-ui/ui/app.slint#L982), [`ui/dr-ui/ui/library.slint:1132`](../ui/dr-ui/ui/library.slint#L1132), [`ui/dr-ui/ui/library.slint:670`](../ui/dr-ui/ui/library.slint#L670), [`ui/dr-ui/ui/library.slint:762`](../ui/dr-ui/ui/library.slint#L762) |
-| FR-EXP-8 | [`core/dr-decode/src/lib.rs:326`](../core/dr-decode/src/lib.rs#L326), [`core/dr-decode/src/lib.rs:350`](../core/dr-decode/src/lib.rs#L350), [`core/dr-decode/src/lib.rs:364`](../core/dr-decode/src/lib.rs#L364), [`core/dr-decode/src/lib.rs:71`](../core/dr-decode/src/lib.rs#L71), [`core/dr-decode/src/lib.rs:79`](../core/dr-decode/src/lib.rs#L79), [`core/dr-decode/src/lib.rs:82`](../core/dr-decode/src/lib.rs#L82), [`core/dr-decode/src/locate.rs:1164`](../core/dr-decode/src/locate.rs#L1164), [`core/dr-decode/src/locate.rs:1222`](../core/dr-decode/src/locate.rs#L1222), [`core/dr-decode/src/locate.rs:316`](../core/dr-decode/src/locate.rs#L316), [`core/dr-decode/src/locate.rs:487`](../core/dr-decode/src/locate.rs#L487), [`core/dr-decode/src/locate.rs:571`](../core/dr-decode/src/locate.rs#L571), [`core/dr-decode/src/locate.rs:584`](../core/dr-decode/src/locate.rs#L584), [`core/dr-decode/src/locate.rs:667`](../core/dr-decode/src/locate.rs#L667), [`core/dr-export/examples/export.rs:99`](../core/dr-export/examples/export.rs#L99), [`core/dr-export/src/encode.rs:117`](../core/dr-export/src/encode.rs#L117), [`core/dr-export/src/encode.rs:161`](../core/dr-export/src/encode.rs#L161), [`core/dr-export/src/encode.rs:1`](../core/dr-export/src/encode.rs#L1), [`core/dr-export/src/encode.rs:206`](../core/dr-export/src/encode.rs#L206), [`core/dr-export/src/encode.rs:235`](../core/dr-export/src/encode.rs#L235), [`core/dr-export/src/encode.rs:311`](../core/dr-export/src/encode.rs#L311), [`core/dr-export/src/encode.rs:325`](../core/dr-export/src/encode.rs#L325), [`core/dr-export/src/encode.rs:408`](../core/dr-export/src/encode.rs#L408), [`core/dr-export/src/encode.rs:456`](../core/dr-export/src/encode.rs#L456), [`core/dr-export/src/encode.rs:70`](../core/dr-export/src/encode.rs#L70), [`core/dr-export/src/encode.rs:795`](../core/dr-export/src/encode.rs#L795), [`core/dr-export/src/encode.rs:809`](../core/dr-export/src/encode.rs#L809), [`core/dr-export/src/encode.rs:850`](../core/dr-export/src/encode.rs#L850), [`core/dr-export/src/encode.rs:898`](../core/dr-export/src/encode.rs#L898), [`core/dr-export/src/exif.rs:1`](../core/dr-export/src/exif.rs#L1), [`core/dr-export/src/lib.rs:136`](../core/dr-export/src/lib.rs#L136), [`core/dr-export/src/metadata.rs:1`](../core/dr-export/src/metadata.rs#L1), [`core/dr-export/src/metadata.rs:41`](../core/dr-export/src/metadata.rs#L41), [`core/dr-export/src/metadata.rs:74`](../core/dr-export/src/metadata.rs#L74), [`core/dr-types/src/lib.rs:444`](../core/dr-types/src/lib.rs#L444), [`core/dr-types/src/settings.rs:259`](../core/dr-types/src/settings.rs#L259), [`ui/dr-ui/src/export.rs:620`](../ui/dr-ui/src/export.rs#L620), [`ui/dr-ui/src/export.rs:648`](../ui/dr-ui/src/export.rs#L648), [`ui/dr-ui/src/export.rs:776`](../ui/dr-ui/src/export.rs#L776), [`ui/dr-ui/src/export.rs:793`](../ui/dr-ui/src/export.rs#L793), [`ui/dr-ui/src/settings_ui.rs:1`](../ui/dr-ui/src/settings_ui.rs#L1) |
+| FR-EXP-6 | [`core/dr-export/src/lib.rs:1`](../core/dr-export/src/lib.rs#L1), [`core/dr-export/src/name.rs:1`](../core/dr-export/src/name.rs#L1), [`core/dr-types/src/settings.rs:1`](../core/dr-types/src/settings.rs#L1), [`ui/dr-ui/src/export.rs:1`](../ui/dr-ui/src/export.rs#L1), [`ui/dr-ui/src/lib.rs:328`](../ui/dr-ui/src/lib.rs#L328), [`ui/dr-ui/src/settings_ui.rs:1`](../ui/dr-ui/src/settings_ui.rs#L1), [`ui/dr-ui/src/settings_ui.rs:48`](../ui/dr-ui/src/settings_ui.rs#L48), [`ui/dr-ui/src/settings_ui.rs:590`](../ui/dr-ui/src/settings_ui.rs#L590) |
+| FR-EXP-7 | [`ui/dr-ui/src/activity.rs:83`](../ui/dr-ui/src/activity.rs#L83), [`ui/dr-ui/src/export.rs:1`](../ui/dr-ui/src/export.rs#L1), [`ui/dr-ui/src/export.rs:941`](../ui/dr-ui/src/export.rs#L941), [`ui/dr-ui/src/lib.rs:175`](../ui/dr-ui/src/lib.rs#L175), [`ui/dr-ui/src/lib.rs:1792`](../ui/dr-ui/src/lib.rs#L1792), [`ui/dr-ui/src/lib.rs:328`](../ui/dr-ui/src/lib.rs#L328), [`ui/dr-ui/src/lib.rs:363`](../ui/dr-ui/src/lib.rs#L363), [`ui/dr-ui/src/lib.rs:390`](../ui/dr-ui/src/lib.rs#L390), [`ui/dr-ui/src/library_ui.rs:3147`](../ui/dr-ui/src/library_ui.rs#L3147), [`ui/dr-ui/src/library_ui.rs:498`](../ui/dr-ui/src/library_ui.rs#L498), [`ui/dr-ui/src/library_ui.rs:569`](../ui/dr-ui/src/library_ui.rs#L569), [`ui/dr-ui/src/library_ui.rs:5833`](../ui/dr-ui/src/library_ui.rs#L5833), [`ui/dr-ui/src/library_ui.rs:5910`](../ui/dr-ui/src/library_ui.rs#L5910), [`ui/dr-ui/src/library_ui.rs:5922`](../ui/dr-ui/src/library_ui.rs#L5922), [`ui/dr-ui/src/library_ui.rs:626`](../ui/dr-ui/src/library_ui.rs#L626), [`ui/dr-ui/ui/app.slint:1372`](../ui/dr-ui/ui/app.slint#L1372), [`ui/dr-ui/ui/app.slint:992`](../ui/dr-ui/ui/app.slint#L992), [`ui/dr-ui/ui/library.slint:1299`](../ui/dr-ui/ui/library.slint#L1299), [`ui/dr-ui/ui/library.slint:827`](../ui/dr-ui/ui/library.slint#L827), [`ui/dr-ui/ui/library.slint:919`](../ui/dr-ui/ui/library.slint#L919) |
+| FR-EXP-8 | [`core/dr-decode/src/lib.rs:326`](../core/dr-decode/src/lib.rs#L326), [`core/dr-decode/src/lib.rs:350`](../core/dr-decode/src/lib.rs#L350), [`core/dr-decode/src/lib.rs:364`](../core/dr-decode/src/lib.rs#L364), [`core/dr-decode/src/lib.rs:71`](../core/dr-decode/src/lib.rs#L71), [`core/dr-decode/src/lib.rs:79`](../core/dr-decode/src/lib.rs#L79), [`core/dr-decode/src/lib.rs:82`](../core/dr-decode/src/lib.rs#L82), [`core/dr-decode/src/locate.rs:1164`](../core/dr-decode/src/locate.rs#L1164), [`core/dr-decode/src/locate.rs:1222`](../core/dr-decode/src/locate.rs#L1222), [`core/dr-decode/src/locate.rs:316`](../core/dr-decode/src/locate.rs#L316), [`core/dr-decode/src/locate.rs:487`](../core/dr-decode/src/locate.rs#L487), [`core/dr-decode/src/locate.rs:571`](../core/dr-decode/src/locate.rs#L571), [`core/dr-decode/src/locate.rs:584`](../core/dr-decode/src/locate.rs#L584), [`core/dr-decode/src/locate.rs:667`](../core/dr-decode/src/locate.rs#L667), [`core/dr-export/examples/export.rs:99`](../core/dr-export/examples/export.rs#L99), [`core/dr-export/src/encode.rs:117`](../core/dr-export/src/encode.rs#L117), [`core/dr-export/src/encode.rs:161`](../core/dr-export/src/encode.rs#L161), [`core/dr-export/src/encode.rs:1`](../core/dr-export/src/encode.rs#L1), [`core/dr-export/src/encode.rs:206`](../core/dr-export/src/encode.rs#L206), [`core/dr-export/src/encode.rs:235`](../core/dr-export/src/encode.rs#L235), [`core/dr-export/src/encode.rs:311`](../core/dr-export/src/encode.rs#L311), [`core/dr-export/src/encode.rs:325`](../core/dr-export/src/encode.rs#L325), [`core/dr-export/src/encode.rs:408`](../core/dr-export/src/encode.rs#L408), [`core/dr-export/src/encode.rs:456`](../core/dr-export/src/encode.rs#L456), [`core/dr-export/src/encode.rs:70`](../core/dr-export/src/encode.rs#L70), [`core/dr-export/src/encode.rs:795`](../core/dr-export/src/encode.rs#L795), [`core/dr-export/src/encode.rs:809`](../core/dr-export/src/encode.rs#L809), [`core/dr-export/src/encode.rs:850`](../core/dr-export/src/encode.rs#L850), [`core/dr-export/src/encode.rs:898`](../core/dr-export/src/encode.rs#L898), [`core/dr-export/src/exif.rs:1`](../core/dr-export/src/exif.rs#L1), [`core/dr-export/src/lib.rs:136`](../core/dr-export/src/lib.rs#L136), [`core/dr-export/src/metadata.rs:1`](../core/dr-export/src/metadata.rs#L1), [`core/dr-export/src/metadata.rs:41`](../core/dr-export/src/metadata.rs#L41), [`core/dr-export/src/metadata.rs:74`](../core/dr-export/src/metadata.rs#L74), [`core/dr-types/src/lib.rs:444`](../core/dr-types/src/lib.rs#L444), [`core/dr-types/src/settings.rs:313`](../core/dr-types/src/settings.rs#L313), [`ui/dr-ui/src/export.rs:620`](../ui/dr-ui/src/export.rs#L620), [`ui/dr-ui/src/export.rs:648`](../ui/dr-ui/src/export.rs#L648), [`ui/dr-ui/src/export.rs:776`](../ui/dr-ui/src/export.rs#L776), [`ui/dr-ui/src/export.rs:793`](../ui/dr-ui/src/export.rs#L793), [`ui/dr-ui/src/settings_ui.rs:1`](../ui/dr-ui/src/settings_ui.rs#L1) |
 | FR-EXP-9 | [`core/dr-decode/src/lib.rs:506`](../core/dr-decode/src/lib.rs#L506), [`core/dr-export/src/lib.rs:128`](../core/dr-export/src/lib.rs#L128), [`core/dr-export/src/lib.rs:1`](../core/dr-export/src/lib.rs#L1), [`core/dr-gpu/src/adjust.rs:791`](../core/dr-gpu/src/adjust.rs#L791), [`ui/dr-ui/src/develop.rs:2284`](../ui/dr-ui/src/develop.rs#L2284), [`ui/dr-ui/src/lib.rs:328`](../ui/dr-ui/src/lib.rs#L328) |
 | FR-NC-1 | [`core/dr-sync-nextcloud/src/auth.rs:132`](../core/dr-sync-nextcloud/src/auth.rs#L132), [`core/dr-sync-nextcloud/src/auth.rs:44`](../core/dr-sync-nextcloud/src/auth.rs#L44), [`core/dr-sync-nextcloud/src/session.rs:128`](../core/dr-sync-nextcloud/src/session.rs#L128), [`ui/dr-ui/src/launch.rs:256`](../ui/dr-ui/src/launch.rs#L256), [`ui/dr-ui/src/launch.rs:49`](../ui/dr-ui/src/launch.rs#L49), [`ui/dr-ui/src/launch_ui.rs:344`](../ui/dr-ui/src/launch_ui.rs#L344) |
-| FR-NC-10 | [`ui/dr-ui/src/export.rs:1`](../ui/dr-ui/src/export.rs#L1), [`ui/dr-ui/src/lib.rs:390`](../ui/dr-ui/src/lib.rs#L390), [`ui/dr-ui/src/library.rs:1541`](../ui/dr-ui/src/library.rs#L1541), [`ui/dr-ui/src/library.rs:415`](../ui/dr-ui/src/library.rs#L415), [`ui/dr-ui/src/library.rs:709`](../ui/dr-ui/src/library.rs#L709), [`ui/dr-ui/src/library.rs:906`](../ui/dr-ui/src/library.rs#L906), [`ui/dr-ui/src/library_ui.rs:1492`](../ui/dr-ui/src/library_ui.rs#L1492), [`ui/dr-ui/src/library_ui.rs:3104`](../ui/dr-ui/src/library_ui.rs#L3104), [`ui/dr-ui/src/library_ui.rs:416`](../ui/dr-ui/src/library_ui.rs#L416), [`ui/dr-ui/src/sidecar_cache.rs:1`](../ui/dr-ui/src/sidecar_cache.rs#L1) |
+| FR-NC-10 | [`ui/dr-ui/src/export.rs:1`](../ui/dr-ui/src/export.rs#L1), [`ui/dr-ui/src/lib.rs:390`](../ui/dr-ui/src/lib.rs#L390), [`ui/dr-ui/src/library.rs:1541`](../ui/dr-ui/src/library.rs#L1541), [`ui/dr-ui/src/library.rs:415`](../ui/dr-ui/src/library.rs#L415), [`ui/dr-ui/src/library.rs:709`](../ui/dr-ui/src/library.rs#L709), [`ui/dr-ui/src/library.rs:906`](../ui/dr-ui/src/library.rs#L906), [`ui/dr-ui/src/library_ui.rs:1515`](../ui/dr-ui/src/library_ui.rs#L1515), [`ui/dr-ui/src/library_ui.rs:3147`](../ui/dr-ui/src/library_ui.rs#L3147), [`ui/dr-ui/src/library_ui.rs:439`](../ui/dr-ui/src/library_ui.rs#L439), [`ui/dr-ui/src/sidecar_cache.rs:1`](../ui/dr-ui/src/sidecar_cache.rs#L1) |
 | FR-NC-12 | [`core/dr-sync-nextcloud/src/lib.rs:34`](../core/dr-sync-nextcloud/src/lib.rs#L34), [`core/dr-sync-nextcloud/src/lib.rs:892`](../core/dr-sync-nextcloud/src/lib.rs#L892), [`core/dr-sync/src/lib.rs:157`](../core/dr-sync/src/lib.rs#L157), [`core/dr-sync/src/lib.rs:40`](../core/dr-sync/src/lib.rs#L40), [`core/dr-sync/src/reachability.rs:1`](../core/dr-sync/src/reachability.rs#L1) |
 | FR-NC-2 | [`core/dr-sync-nextcloud/src/session.rs:128`](../core/dr-sync-nextcloud/src/session.rs#L128), [`core/dr-sync-nextcloud/src/session.rs:34`](../core/dr-sync-nextcloud/src/session.rs#L34) |
-| FR-NC-3 | [`core/dr-decode/src/locate.rs:1`](../core/dr-decode/src/locate.rs#L1), [`core/dr-decode/src/preview.rs:161`](../core/dr-decode/src/preview.rs#L161), [`core/dr-sync/src/capability.rs:41`](../core/dr-sync/src/capability.rs#L41), [`core/dr-thumbs/src/lib.rs:1`](../core/dr-thumbs/src/lib.rs#L1), [`ui/dr-ui/src/library.rs:1`](../ui/dr-ui/src/library.rs#L1), [`ui/dr-ui/src/library.rs:2557`](../ui/dr-ui/src/library.rs#L2557), [`ui/dr-ui/src/library.rs:2583`](../ui/dr-ui/src/library.rs#L2583), [`ui/dr-ui/src/library_ui.rs:1`](../ui/dr-ui/src/library_ui.rs#L1), [`ui/dr-ui/src/library_ui.rs:3366`](../ui/dr-ui/src/library_ui.rs#L3366), [`ui/dr-ui/src/library_ui.rs:4154`](../ui/dr-ui/src/library_ui.rs#L4154), [`ui/dr-ui/ui/app.slint:507`](../ui/dr-ui/ui/app.slint#L507), [`ui/dr-ui/ui/settings.slint:330`](../ui/dr-ui/ui/settings.slint#L330), [`ui/dr-ui/ui/settings.slint:72`](../ui/dr-ui/ui/settings.slint#L72) |
+| FR-NC-3 | [`core/dr-decode/src/locate.rs:1`](../core/dr-decode/src/locate.rs#L1), [`core/dr-decode/src/preview.rs:161`](../core/dr-decode/src/preview.rs#L161), [`core/dr-sync/src/capability.rs:41`](../core/dr-sync/src/capability.rs#L41), [`core/dr-thumbs/src/lib.rs:1`](../core/dr-thumbs/src/lib.rs#L1), [`ui/dr-ui/src/library.rs:1`](../ui/dr-ui/src/library.rs#L1), [`ui/dr-ui/src/library.rs:2557`](../ui/dr-ui/src/library.rs#L2557), [`ui/dr-ui/src/library.rs:2583`](../ui/dr-ui/src/library.rs#L2583), [`ui/dr-ui/src/library_ui.rs:1`](../ui/dr-ui/src/library_ui.rs#L1), [`ui/dr-ui/src/library_ui.rs:3409`](../ui/dr-ui/src/library_ui.rs#L3409), [`ui/dr-ui/src/library_ui.rs:4328`](../ui/dr-ui/src/library_ui.rs#L4328), [`ui/dr-ui/ui/app.slint:513`](../ui/dr-ui/ui/app.slint#L513), [`ui/dr-ui/ui/settings.slint:340`](../ui/dr-ui/ui/settings.slint#L340), [`ui/dr-ui/ui/settings.slint:72`](../ui/dr-ui/ui/settings.slint#L72) |
 | FR-NC-4 | [`core/dr-sync-nextcloud/src/propfind.rs:100`](../core/dr-sync-nextcloud/src/propfind.rs#L100), [`core/dr-sync-nextcloud/src/propfind.rs:51`](../core/dr-sync-nextcloud/src/propfind.rs#L51), [`core/dr-sync/src/capability.rs:6`](../core/dr-sync/src/capability.rs#L6), [`core/dr-sync/src/lib.rs:157`](../core/dr-sync/src/lib.rs#L157), [`core/dr-sync/src/scan.rs:93`](../core/dr-sync/src/scan.rs#L93), [`ui/dr-ui/src/launch.rs:49`](../ui/dr-ui/src/launch.rs#L49) |
 | FR-NC-5 | [`core/dr-sync-nextcloud/src/propfind.rs:51`](../core/dr-sync-nextcloud/src/propfind.rs#L51), [`ui/dr-ui/src/import.rs:489`](../ui/dr-ui/src/import.rs#L489) |
 | FR-NC-6 | [`ui/dr-ui/src/activity.rs:1`](../ui/dr-ui/src/activity.rs#L1) |
-| FR-NC-6a | [`core/dr-catalog/src/cache.rs:1`](../core/dr-catalog/src/cache.rs#L1), [`core/dr-catalog/src/schema.rs:337`](../core/dr-catalog/src/schema.rs#L337), [`core/dr-catalog/src/schema.rs:738`](../core/dr-catalog/src/schema.rs#L738), [`core/dr-types/src/selector.rs:1`](../core/dr-types/src/selector.rs#L1), [`core/dr-types/src/settings.rs:1`](../core/dr-types/src/settings.rs#L1), [`ui/dr-ui/src/collections_ui.rs:3053`](../ui/dr-ui/src/collections_ui.rs#L3053), [`ui/dr-ui/src/collections_ui.rs:576`](../ui/dr-ui/src/collections_ui.rs#L576), [`ui/dr-ui/src/collections_ui.rs:638`](../ui/dr-ui/src/collections_ui.rs#L638), [`ui/dr-ui/src/lib.rs:1540`](../ui/dr-ui/src/lib.rs#L1540), [`ui/dr-ui/src/lib.rs:2280`](../ui/dr-ui/src/lib.rs#L2280), [`ui/dr-ui/src/library.rs:1283`](../ui/dr-ui/src/library.rs#L1283), [`ui/dr-ui/src/library.rs:1306`](../ui/dr-ui/src/library.rs#L1306), [`ui/dr-ui/src/library.rs:1464`](../ui/dr-ui/src/library.rs#L1464), [`ui/dr-ui/src/library_ui.rs:1024`](../ui/dr-ui/src/library_ui.rs#L1024), [`ui/dr-ui/src/library_ui.rs:1125`](../ui/dr-ui/src/library_ui.rs#L1125), [`ui/dr-ui/src/library_ui.rs:1180`](../ui/dr-ui/src/library_ui.rs#L1180), [`ui/dr-ui/src/library_ui.rs:1298`](../ui/dr-ui/src/library_ui.rs#L1298), [`ui/dr-ui/src/library_ui.rs:1417`](../ui/dr-ui/src/library_ui.rs#L1417), [`ui/dr-ui/src/library_ui.rs:1895`](../ui/dr-ui/src/library_ui.rs#L1895), [`ui/dr-ui/src/library_ui.rs:211`](../ui/dr-ui/src/library_ui.rs#L211), [`ui/dr-ui/src/library_ui.rs:222`](../ui/dr-ui/src/library_ui.rs#L222), [`ui/dr-ui/src/library_ui.rs:230`](../ui/dr-ui/src/library_ui.rs#L230), [`ui/dr-ui/src/library_ui.rs:242`](../ui/dr-ui/src/library_ui.rs#L242), [`ui/dr-ui/src/library_ui.rs:251`](../ui/dr-ui/src/library_ui.rs#L251), [`ui/dr-ui/src/library_ui.rs:317`](../ui/dr-ui/src/library_ui.rs#L317), [`ui/dr-ui/src/library_ui.rs:327`](../ui/dr-ui/src/library_ui.rs#L327), [`ui/dr-ui/src/library_ui.rs:369`](../ui/dr-ui/src/library_ui.rs#L369), [`ui/dr-ui/src/library_ui.rs:432`](../ui/dr-ui/src/library_ui.rs#L432), [`ui/dr-ui/src/library_ui.rs:463`](../ui/dr-ui/src/library_ui.rs#L463), [`ui/dr-ui/src/library_ui.rs:4751`](../ui/dr-ui/src/library_ui.rs#L4751), [`ui/dr-ui/src/library_ui.rs:475`](../ui/dr-ui/src/library_ui.rs#L475), [`ui/dr-ui/src/library_ui.rs:4769`](../ui/dr-ui/src/library_ui.rs#L4769), [`ui/dr-ui/src/library_ui.rs:4781`](../ui/dr-ui/src/library_ui.rs#L4781), [`ui/dr-ui/src/library_ui.rs:951`](../ui/dr-ui/src/library_ui.rs#L951), [`ui/dr-ui/src/settings_store.rs:1`](../ui/dr-ui/src/settings_store.rs#L1), [`ui/dr-ui/src/settings_ui.rs:1`](../ui/dr-ui/src/settings_ui.rs#L1), [`ui/dr-ui/ui/app.slint:2383`](../ui/dr-ui/ui/app.slint#L2383), [`ui/dr-ui/ui/app.slint:568`](../ui/dr-ui/ui/app.slint#L568), [`ui/dr-ui/ui/collections.slint:249`](../ui/dr-ui/ui/collections.slint#L249), [`ui/dr-ui/ui/collections.slint:369`](../ui/dr-ui/ui/collections.slint#L369), [`ui/dr-ui/ui/collections.slint:52`](../ui/dr-ui/ui/collections.slint#L52), [`ui/dr-ui/ui/collections.slint:682`](../ui/dr-ui/ui/collections.slint#L682), [`ui/dr-ui/ui/collections.slint:84`](../ui/dr-ui/ui/collections.slint#L84), [`ui/dr-ui/ui/icons.slint:260`](../ui/dr-ui/ui/icons.slint#L260), [`ui/dr-ui/ui/library.slint:808`](../ui/dr-ui/ui/library.slint#L808) |
-| FR-NC-6b | [`ui/dr-ui/src/library_ui.rs:1180`](../ui/dr-ui/src/library_ui.rs#L1180) |
-| FR-NC-6c | [`core/dr-sync-nextcloud/src/desktop_client.rs:30`](../core/dr-sync-nextcloud/src/desktop_client.rs#L30), [`core/dr-types/src/lib.rs:119`](../core/dr-types/src/lib.rs#L119), [`core/dr-types/src/lib.rs:201`](../core/dr-types/src/lib.rs#L201), [`ui/dr-ui/src/activity.rs:1`](../ui/dr-ui/src/activity.rs#L1), [`ui/dr-ui/src/collections_ui.rs:3053`](../ui/dr-ui/src/collections_ui.rs#L3053), [`ui/dr-ui/src/collections_ui.rs:576`](../ui/dr-ui/src/collections_ui.rs#L576), [`ui/dr-ui/src/collections_ui.rs:638`](../ui/dr-ui/src/collections_ui.rs#L638), [`ui/dr-ui/src/library_ui.rs:1024`](../ui/dr-ui/src/library_ui.rs#L1024), [`ui/dr-ui/src/library_ui.rs:951`](../ui/dr-ui/src/library_ui.rs#L951), [`ui/dr-ui/ui/collections.slint:249`](../ui/dr-ui/ui/collections.slint#L249), [`ui/dr-ui/ui/collections.slint:682`](../ui/dr-ui/ui/collections.slint#L682), [`ui/dr-ui/ui/icons.slint:260`](../ui/dr-ui/ui/icons.slint#L260) |
-| FR-NC-7 | [`core/dr-sync-nextcloud/src/lib.rs:95`](../core/dr-sync-nextcloud/src/lib.rs#L95), [`ui/dr-ui/src/derived_sync.rs:1`](../ui/dr-ui/src/derived_sync.rs#L1), [`ui/dr-ui/src/library.rs:2583`](../ui/dr-ui/src/library.rs#L2583), [`ui/dr-ui/src/library_ui.rs:3366`](../ui/dr-ui/src/library_ui.rs#L3366), [`ui/dr-ui/ui/settings.slint:330`](../ui/dr-ui/ui/settings.slint#L330) |
-| FR-NC-7a | [`core/dr-ingest/src/layout.rs:1`](../core/dr-ingest/src/layout.rs#L1), [`core/dr-sync/src/upload.rs:1`](../core/dr-sync/src/upload.rs#L1), [`core/dr-sync/src/upload.rs:40`](../core/dr-sync/src/upload.rs#L40), [`core/dr-types/src/settings.rs:62`](../core/dr-types/src/settings.rs#L62), [`ui/dr-ui/src/import.rs:1`](../ui/dr-ui/src/import.rs#L1), [`ui/dr-ui/src/import.rs:97`](../ui/dr-ui/src/import.rs#L97), [`ui/dr-ui/src/import_ui.rs:1`](../ui/dr-ui/src/import_ui.rs#L1), [`ui/dr-ui/src/lib.rs:944`](../ui/dr-ui/src/lib.rs#L944), [`ui/dr-ui/ui/import.slint:5`](../ui/dr-ui/ui/import.slint#L5) |
+| FR-NC-6a | [`core/dr-catalog/src/cache.rs:1`](../core/dr-catalog/src/cache.rs#L1), [`core/dr-catalog/src/schema.rs:337`](../core/dr-catalog/src/schema.rs#L337), [`core/dr-catalog/src/schema.rs:738`](../core/dr-catalog/src/schema.rs#L738), [`core/dr-types/src/selector.rs:1`](../core/dr-types/src/selector.rs#L1), [`core/dr-types/src/settings.rs:1`](../core/dr-types/src/settings.rs#L1), [`ui/dr-ui/src/collections_ui.rs:3053`](../ui/dr-ui/src/collections_ui.rs#L3053), [`ui/dr-ui/src/collections_ui.rs:576`](../ui/dr-ui/src/collections_ui.rs#L576), [`ui/dr-ui/src/collections_ui.rs:638`](../ui/dr-ui/src/collections_ui.rs#L638), [`ui/dr-ui/src/lib.rs:1552`](../ui/dr-ui/src/lib.rs#L1552), [`ui/dr-ui/src/lib.rs:2292`](../ui/dr-ui/src/lib.rs#L2292), [`ui/dr-ui/src/library.rs:1283`](../ui/dr-ui/src/library.rs#L1283), [`ui/dr-ui/src/library.rs:1306`](../ui/dr-ui/src/library.rs#L1306), [`ui/dr-ui/src/library.rs:1464`](../ui/dr-ui/src/library.rs#L1464), [`ui/dr-ui/src/library_ui.rs:1047`](../ui/dr-ui/src/library_ui.rs#L1047), [`ui/dr-ui/src/library_ui.rs:1148`](../ui/dr-ui/src/library_ui.rs#L1148), [`ui/dr-ui/src/library_ui.rs:1203`](../ui/dr-ui/src/library_ui.rs#L1203), [`ui/dr-ui/src/library_ui.rs:1321`](../ui/dr-ui/src/library_ui.rs#L1321), [`ui/dr-ui/src/library_ui.rs:1440`](../ui/dr-ui/src/library_ui.rs#L1440), [`ui/dr-ui/src/library_ui.rs:1918`](../ui/dr-ui/src/library_ui.rs#L1918), [`ui/dr-ui/src/library_ui.rs:211`](../ui/dr-ui/src/library_ui.rs#L211), [`ui/dr-ui/src/library_ui.rs:222`](../ui/dr-ui/src/library_ui.rs#L222), [`ui/dr-ui/src/library_ui.rs:230`](../ui/dr-ui/src/library_ui.rs#L230), [`ui/dr-ui/src/library_ui.rs:242`](../ui/dr-ui/src/library_ui.rs#L242), [`ui/dr-ui/src/library_ui.rs:251`](../ui/dr-ui/src/library_ui.rs#L251), [`ui/dr-ui/src/library_ui.rs:340`](../ui/dr-ui/src/library_ui.rs#L340), [`ui/dr-ui/src/library_ui.rs:350`](../ui/dr-ui/src/library_ui.rs#L350), [`ui/dr-ui/src/library_ui.rs:392`](../ui/dr-ui/src/library_ui.rs#L392), [`ui/dr-ui/src/library_ui.rs:455`](../ui/dr-ui/src/library_ui.rs#L455), [`ui/dr-ui/src/library_ui.rs:486`](../ui/dr-ui/src/library_ui.rs#L486), [`ui/dr-ui/src/library_ui.rs:4989`](../ui/dr-ui/src/library_ui.rs#L4989), [`ui/dr-ui/src/library_ui.rs:498`](../ui/dr-ui/src/library_ui.rs#L498), [`ui/dr-ui/src/library_ui.rs:5007`](../ui/dr-ui/src/library_ui.rs#L5007), [`ui/dr-ui/src/library_ui.rs:5019`](../ui/dr-ui/src/library_ui.rs#L5019), [`ui/dr-ui/src/library_ui.rs:974`](../ui/dr-ui/src/library_ui.rs#L974), [`ui/dr-ui/src/settings_store.rs:1`](../ui/dr-ui/src/settings_store.rs#L1), [`ui/dr-ui/src/settings_ui.rs:1`](../ui/dr-ui/src/settings_ui.rs#L1), [`ui/dr-ui/ui/app.slint:2401`](../ui/dr-ui/ui/app.slint#L2401), [`ui/dr-ui/ui/app.slint:574`](../ui/dr-ui/ui/app.slint#L574), [`ui/dr-ui/ui/collections.slint:249`](../ui/dr-ui/ui/collections.slint#L249), [`ui/dr-ui/ui/collections.slint:369`](../ui/dr-ui/ui/collections.slint#L369), [`ui/dr-ui/ui/collections.slint:52`](../ui/dr-ui/ui/collections.slint#L52), [`ui/dr-ui/ui/collections.slint:682`](../ui/dr-ui/ui/collections.slint#L682), [`ui/dr-ui/ui/collections.slint:84`](../ui/dr-ui/ui/collections.slint#L84), [`ui/dr-ui/ui/icons.slint:260`](../ui/dr-ui/ui/icons.slint#L260), [`ui/dr-ui/ui/library.slint:965`](../ui/dr-ui/ui/library.slint#L965) |
+| FR-NC-6b | [`ui/dr-ui/src/library_ui.rs:1203`](../ui/dr-ui/src/library_ui.rs#L1203) |
+| FR-NC-6c | [`core/dr-sync-nextcloud/src/desktop_client.rs:30`](../core/dr-sync-nextcloud/src/desktop_client.rs#L30), [`core/dr-types/src/lib.rs:119`](../core/dr-types/src/lib.rs#L119), [`core/dr-types/src/lib.rs:201`](../core/dr-types/src/lib.rs#L201), [`ui/dr-ui/src/activity.rs:1`](../ui/dr-ui/src/activity.rs#L1), [`ui/dr-ui/src/collections_ui.rs:3053`](../ui/dr-ui/src/collections_ui.rs#L3053), [`ui/dr-ui/src/collections_ui.rs:576`](../ui/dr-ui/src/collections_ui.rs#L576), [`ui/dr-ui/src/collections_ui.rs:638`](../ui/dr-ui/src/collections_ui.rs#L638), [`ui/dr-ui/src/library_ui.rs:1047`](../ui/dr-ui/src/library_ui.rs#L1047), [`ui/dr-ui/src/library_ui.rs:974`](../ui/dr-ui/src/library_ui.rs#L974), [`ui/dr-ui/ui/collections.slint:249`](../ui/dr-ui/ui/collections.slint#L249), [`ui/dr-ui/ui/collections.slint:682`](../ui/dr-ui/ui/collections.slint#L682), [`ui/dr-ui/ui/icons.slint:260`](../ui/dr-ui/ui/icons.slint#L260) |
+| FR-NC-7 | [`core/dr-sync-nextcloud/src/lib.rs:95`](../core/dr-sync-nextcloud/src/lib.rs#L95), [`ui/dr-ui/src/derived_sync.rs:1`](../ui/dr-ui/src/derived_sync.rs#L1), [`ui/dr-ui/src/library.rs:2583`](../ui/dr-ui/src/library.rs#L2583), [`ui/dr-ui/src/library_ui.rs:3409`](../ui/dr-ui/src/library_ui.rs#L3409), [`ui/dr-ui/ui/settings.slint:340`](../ui/dr-ui/ui/settings.slint#L340) |
+| FR-NC-7a | [`core/dr-ingest/src/layout.rs:1`](../core/dr-ingest/src/layout.rs#L1), [`core/dr-sync/src/upload.rs:1`](../core/dr-sync/src/upload.rs#L1), [`core/dr-sync/src/upload.rs:40`](../core/dr-sync/src/upload.rs#L40), [`core/dr-types/src/settings.rs:116`](../core/dr-types/src/settings.rs#L116), [`ui/dr-ui/src/import.rs:1`](../ui/dr-ui/src/import.rs#L1), [`ui/dr-ui/src/import.rs:97`](../ui/dr-ui/src/import.rs#L97), [`ui/dr-ui/src/import_ui.rs:1`](../ui/dr-ui/src/import_ui.rs#L1), [`ui/dr-ui/src/lib.rs:944`](../ui/dr-ui/src/lib.rs#L944), [`ui/dr-ui/ui/import.slint:5`](../ui/dr-ui/ui/import.slint#L5) |
 | FR-NC-7b | [`core/dr-ingest/src/lib.rs:733`](../core/dr-ingest/src/lib.rs#L733), [`core/dr-sync/src/upload.rs:1`](../core/dr-sync/src/upload.rs#L1), [`ui/dr-ui/src/import.rs:123`](../ui/dr-ui/src/import.rs#L123), [`ui/dr-ui/src/import.rs:337`](../ui/dr-ui/src/import.rs#L337), [`ui/dr-ui/src/import.rs:585`](../ui/dr-ui/src/import.rs#L585), [`ui/dr-ui/src/import.rs:97`](../ui/dr-ui/src/import.rs#L97), [`ui/dr-ui/src/import_ui.rs:1`](../ui/dr-ui/src/import_ui.rs#L1), [`ui/dr-ui/src/lib.rs:944`](../ui/dr-ui/src/lib.rs#L944) |
-| FR-NC-8 | [`core/dr-pipeline/src/sidecar.rs:109`](../core/dr-pipeline/src/sidecar.rs#L109), [`core/dr-pipeline/src/sidecar.rs:90`](../core/dr-pipeline/src/sidecar.rs#L90), [`ui/dr-ui/src/lib.rs:1509`](../ui/dr-ui/src/lib.rs#L1509), [`ui/dr-ui/src/library.rs:340`](../ui/dr-ui/src/library.rs#L340), [`ui/dr-ui/src/library_ui.rs:384`](../ui/dr-ui/src/library_ui.rs#L384) |
+| FR-NC-8 | [`core/dr-pipeline/src/sidecar.rs:109`](../core/dr-pipeline/src/sidecar.rs#L109), [`core/dr-pipeline/src/sidecar.rs:90`](../core/dr-pipeline/src/sidecar.rs#L90), [`ui/dr-ui/src/lib.rs:1521`](../ui/dr-ui/src/lib.rs#L1521), [`ui/dr-ui/src/library.rs:340`](../ui/dr-ui/src/library.rs#L340), [`ui/dr-ui/src/library_ui.rs:407`](../ui/dr-ui/src/library_ui.rs#L407) |
 | FR-NC-9 | [`core/dr-catalog/src/merge.rs:1`](../core/dr-catalog/src/merge.rs#L1), [`core/dr-catalog/src/schema.rs:280`](../core/dr-catalog/src/schema.rs#L280), [`core/dr-catalog/src/sync.rs:1`](../core/dr-catalog/src/sync.rs#L1), [`core/dr-pipeline/src/sidecar.rs:147`](../core/dr-pipeline/src/sidecar.rs#L147), [`core/dr-pipeline/src/sidecar.rs:301`](../core/dr-pipeline/src/sidecar.rs#L301), [`ui/dr-ui/src/library.rs:709`](../ui/dr-ui/src/library.rs#L709), [`ui/dr-ui/src/library.rs:839`](../ui/dr-ui/src/library.rs#L839) |
 | FR-PLAT-AND-1 | [`core/dr-types/src/lib.rs:53`](../core/dr-types/src/lib.rs#L53) |
 | FR-PLAT-AND-3 | [`core/dr-catalog/src/jobs.rs:1`](../core/dr-catalog/src/jobs.rs#L1) |
@@ -98,14 +98,14 @@ _None._
 | FR-RAW-3 | [`core/dr-decode/src/lib.rs:139`](../core/dr-decode/src/lib.rs#L139), [`core/dr-decode/src/lib.rs:506`](../core/dr-decode/src/lib.rs#L506), [`core/dr-decode/src/locate.rs:1365`](../core/dr-decode/src/locate.rs#L1365) |
 | FR-RAW-4 | [`core/dr-decode/src/error.rs:1`](../core/dr-decode/src/error.rs#L1), [`ui/dr-ui/src/lib.rs:175`](../ui/dr-ui/src/lib.rs#L175) |
 | FR-RAW-5 | [`core/dr-decode/src/lib.rs:167`](../core/dr-decode/src/lib.rs#L167), [`core/dr-gpu/src/demosaic.rs:34`](../core/dr-gpu/src/demosaic.rs#L34), [`core/dr-gpu/src/demosaic.rs:602`](../core/dr-gpu/src/demosaic.rs#L602), [`core/dr-gpu/src/demosaic.rs:681`](../core/dr-gpu/src/demosaic.rs#L681), [`core/dr-gpu/src/demosaic.rs:805`](../core/dr-gpu/src/demosaic.rs#L805) |
-| FR-UI-1 | [`ui/dr-ui/src/lib.rs:2362`](../ui/dr-ui/src/lib.rs#L2362), [`ui/dr-ui/src/lib.rs:67`](../ui/dr-ui/src/lib.rs#L67), [`ui/dr-ui/src/masks_ui.rs:816`](../ui/dr-ui/src/masks_ui.rs#L816), [`ui/dr-ui/ui/library.slint:866`](../ui/dr-ui/ui/library.slint#L866) |
-| FR-UI-2 | [`ui/dr-ui/src/collections_ui.rs:111`](../ui/dr-ui/src/collections_ui.rs#L111), [`ui/dr-ui/src/collections_ui.rs:1450`](../ui/dr-ui/src/collections_ui.rs#L1450), [`ui/dr-ui/src/collections_ui.rs:1464`](../ui/dr-ui/src/collections_ui.rs#L1464), [`ui/dr-ui/src/collections_ui.rs:1509`](../ui/dr-ui/src/collections_ui.rs#L1509), [`ui/dr-ui/src/collections_ui.rs:152`](../ui/dr-ui/src/collections_ui.rs#L152), [`ui/dr-ui/src/collections_ui.rs:1607`](../ui/dr-ui/src/collections_ui.rs#L1607), [`ui/dr-ui/src/collections_ui.rs:444`](../ui/dr-ui/src/collections_ui.rs#L444), [`ui/dr-ui/src/collections_ui.rs:472`](../ui/dr-ui/src/collections_ui.rs#L472), [`ui/dr-ui/src/collections_ui.rs:943`](../ui/dr-ui/src/collections_ui.rs#L943), [`ui/dr-ui/src/collections_ui.rs:953`](../ui/dr-ui/src/collections_ui.rs#L953), [`ui/dr-ui/src/lib.rs:67`](../ui/dr-ui/src/lib.rs#L67), [`ui/dr-ui/src/library_ui.rs:230`](../ui/dr-ui/src/library_ui.rs#L230), [`ui/dr-ui/src/library_ui.rs:4781`](../ui/dr-ui/src/library_ui.rs#L4781), [`ui/dr-ui/src/library_ui.rs:5623`](../ui/dr-ui/src/library_ui.rs#L5623), [`ui/dr-ui/ui/app.slint:2112`](../ui/dr-ui/ui/app.slint#L2112), [`ui/dr-ui/ui/app.slint:262`](../ui/dr-ui/ui/app.slint#L262), [`ui/dr-ui/ui/app.slint:598`](../ui/dr-ui/ui/app.slint#L598), [`ui/dr-ui/ui/app.slint:605`](../ui/dr-ui/ui/app.slint#L605), [`ui/dr-ui/ui/library.slint:1015`](../ui/dr-ui/ui/library.slint#L1015), [`ui/dr-ui/ui/library.slint:1022`](../ui/dr-ui/ui/library.slint#L1022), [`ui/dr-ui/ui/library.slint:1028`](../ui/dr-ui/ui/library.slint#L1028), [`ui/dr-ui/ui/library.slint:2069`](../ui/dr-ui/ui/library.slint#L2069), [`ui/dr-ui/ui/library.slint:658`](../ui/dr-ui/ui/library.slint#L658), [`ui/dr-ui/ui/library.slint:707`](../ui/dr-ui/ui/library.slint#L707), [`ui/dr-ui/ui/settings.slint:93`](../ui/dr-ui/ui/settings.slint#L93) |
-| FR-UI-3 | [`ui/dr-ui/src/develop.rs:1831`](../ui/dr-ui/src/develop.rs#L1831), [`ui/dr-ui/src/library_ui.rs:3949`](../ui/dr-ui/src/library_ui.rs#L3949), [`ui/dr-ui/src/masks_ui.rs:218`](../ui/dr-ui/src/masks_ui.rs#L218), [`ui/dr-ui/src/masks_ui.rs:908`](../ui/dr-ui/src/masks_ui.rs#L908), [`ui/dr-ui/src/masks_ui.rs:930`](../ui/dr-ui/src/masks_ui.rs#L930), [`ui/dr-ui/ui/app.slint:1885`](../ui/dr-ui/ui/app.slint#L1885), [`ui/dr-ui/ui/collections.slint:4`](../ui/dr-ui/ui/collections.slint#L4), [`ui/dr-ui/ui/collections.slint:682`](../ui/dr-ui/ui/collections.slint#L682) |
-| FR-UI-4 | [`ui/dr-ui/src/collections_ui.rs:111`](../ui/dr-ui/src/collections_ui.rs#L111), [`ui/dr-ui/src/collections_ui.rs:124`](../ui/dr-ui/src/collections_ui.rs#L124), [`ui/dr-ui/src/collections_ui.rs:1450`](../ui/dr-ui/src/collections_ui.rs#L1450), [`ui/dr-ui/src/collections_ui.rs:1464`](../ui/dr-ui/src/collections_ui.rs#L1464), [`ui/dr-ui/src/collections_ui.rs:1509`](../ui/dr-ui/src/collections_ui.rs#L1509), [`ui/dr-ui/src/collections_ui.rs:152`](../ui/dr-ui/src/collections_ui.rs#L152), [`ui/dr-ui/src/collections_ui.rs:1607`](../ui/dr-ui/src/collections_ui.rs#L1607), [`ui/dr-ui/src/collections_ui.rs:1634`](../ui/dr-ui/src/collections_ui.rs#L1634), [`ui/dr-ui/src/collections_ui.rs:444`](../ui/dr-ui/src/collections_ui.rs#L444), [`ui/dr-ui/src/collections_ui.rs:472`](../ui/dr-ui/src/collections_ui.rs#L472), [`ui/dr-ui/src/collections_ui.rs:537`](../ui/dr-ui/src/collections_ui.rs#L537), [`ui/dr-ui/src/collections_ui.rs:943`](../ui/dr-ui/src/collections_ui.rs#L943), [`ui/dr-ui/src/collections_ui.rs:953`](../ui/dr-ui/src/collections_ui.rs#L953), [`ui/dr-ui/src/library_ui.rs:3949`](../ui/dr-ui/src/library_ui.rs#L3949), [`ui/dr-ui/src/library_ui.rs:3994`](../ui/dr-ui/src/library_ui.rs#L3994), [`ui/dr-ui/src/library_ui.rs:4097`](../ui/dr-ui/src/library_ui.rs#L4097), [`ui/dr-ui/src/library_ui.rs:4125`](../ui/dr-ui/src/library_ui.rs#L4125), [`ui/dr-ui/src/library_ui.rs:4769`](../ui/dr-ui/src/library_ui.rs#L4769), [`ui/dr-ui/src/library_ui.rs:4781`](../ui/dr-ui/src/library_ui.rs#L4781), [`ui/dr-ui/ui/app.slint:1581`](../ui/dr-ui/ui/app.slint#L1581), [`ui/dr-ui/ui/app.slint:574`](../ui/dr-ui/ui/app.slint#L574), [`ui/dr-ui/ui/app.slint:605`](../ui/dr-ui/ui/app.slint#L605), [`ui/dr-ui/ui/library.slint:1015`](../ui/dr-ui/ui/library.slint#L1015), [`ui/dr-ui/ui/library.slint:1022`](../ui/dr-ui/ui/library.slint#L1022), [`ui/dr-ui/ui/library.slint:1028`](../ui/dr-ui/ui/library.slint#L1028), [`ui/dr-ui/ui/library.slint:2069`](../ui/dr-ui/ui/library.slint#L2069), [`ui/dr-ui/ui/library.slint:658`](../ui/dr-ui/ui/library.slint#L658), [`ui/dr-ui/ui/library.slint:707`](../ui/dr-ui/ui/library.slint#L707), [`ui/dr-ui/ui/library.slint:726`](../ui/dr-ui/ui/library.slint#L726) |
-| FR-UI-5 | [`ui/dr-ui/src/collections_ui.rs:1`](../ui/dr-ui/src/collections_ui.rs#L1), [`ui/dr-ui/src/lib.rs:2007`](../ui/dr-ui/src/lib.rs#L2007), [`ui/dr-ui/src/lib.rs:2396`](../ui/dr-ui/src/lib.rs#L2396), [`ui/dr-ui/src/lib.rs:2581`](../ui/dr-ui/src/lib.rs#L2581), [`ui/dr-ui/src/masks_ui.rs:863`](../ui/dr-ui/src/masks_ui.rs#L863), [`ui/dr-ui/ui/app.slint:297`](../ui/dr-ui/ui/app.slint#L297), [`ui/dr-ui/ui/collections.slint:4`](../ui/dr-ui/ui/collections.slint#L4) |
+| FR-UI-1 | [`ui/dr-ui/src/lib.rs:2374`](../ui/dr-ui/src/lib.rs#L2374), [`ui/dr-ui/src/lib.rs:67`](../ui/dr-ui/src/lib.rs#L67), [`ui/dr-ui/src/masks_ui.rs:816`](../ui/dr-ui/src/masks_ui.rs#L816), [`ui/dr-ui/ui/library.slint:1023`](../ui/dr-ui/ui/library.slint#L1023) |
+| FR-UI-2 | [`ui/dr-ui/src/collections_ui.rs:111`](../ui/dr-ui/src/collections_ui.rs#L111), [`ui/dr-ui/src/collections_ui.rs:1450`](../ui/dr-ui/src/collections_ui.rs#L1450), [`ui/dr-ui/src/collections_ui.rs:1464`](../ui/dr-ui/src/collections_ui.rs#L1464), [`ui/dr-ui/src/collections_ui.rs:1509`](../ui/dr-ui/src/collections_ui.rs#L1509), [`ui/dr-ui/src/collections_ui.rs:152`](../ui/dr-ui/src/collections_ui.rs#L152), [`ui/dr-ui/src/collections_ui.rs:1607`](../ui/dr-ui/src/collections_ui.rs#L1607), [`ui/dr-ui/src/collections_ui.rs:444`](../ui/dr-ui/src/collections_ui.rs#L444), [`ui/dr-ui/src/collections_ui.rs:472`](../ui/dr-ui/src/collections_ui.rs#L472), [`ui/dr-ui/src/collections_ui.rs:943`](../ui/dr-ui/src/collections_ui.rs#L943), [`ui/dr-ui/src/collections_ui.rs:953`](../ui/dr-ui/src/collections_ui.rs#L953), [`ui/dr-ui/src/lib.rs:67`](../ui/dr-ui/src/lib.rs#L67), [`ui/dr-ui/src/library_ui.rs:230`](../ui/dr-ui/src/library_ui.rs#L230), [`ui/dr-ui/src/library_ui.rs:4874`](../ui/dr-ui/src/library_ui.rs#L4874), [`ui/dr-ui/src/library_ui.rs:5019`](../ui/dr-ui/src/library_ui.rs#L5019), [`ui/dr-ui/src/library_ui.rs:5941`](../ui/dr-ui/src/library_ui.rs#L5941), [`ui/dr-ui/ui/app.slint:2130`](../ui/dr-ui/ui/app.slint#L2130), [`ui/dr-ui/ui/app.slint:262`](../ui/dr-ui/ui/app.slint#L262), [`ui/dr-ui/ui/app.slint:604`](../ui/dr-ui/ui/app.slint#L604), [`ui/dr-ui/ui/app.slint:611`](../ui/dr-ui/ui/app.slint#L611), [`ui/dr-ui/ui/library.slint:1172`](../ui/dr-ui/ui/library.slint#L1172), [`ui/dr-ui/ui/library.slint:1179`](../ui/dr-ui/ui/library.slint#L1179), [`ui/dr-ui/ui/library.slint:1185`](../ui/dr-ui/ui/library.slint#L1185), [`ui/dr-ui/ui/library.slint:2246`](../ui/dr-ui/ui/library.slint#L2246), [`ui/dr-ui/ui/library.slint:815`](../ui/dr-ui/ui/library.slint#L815), [`ui/dr-ui/ui/library.slint:864`](../ui/dr-ui/ui/library.slint#L864), [`ui/dr-ui/ui/settings.slint:93`](../ui/dr-ui/ui/settings.slint#L93) |
+| FR-UI-3 | [`ui/dr-ui/src/develop.rs:1831`](../ui/dr-ui/src/develop.rs#L1831), [`ui/dr-ui/src/library_ui.rs:4123`](../ui/dr-ui/src/library_ui.rs#L4123), [`ui/dr-ui/src/masks_ui.rs:218`](../ui/dr-ui/src/masks_ui.rs#L218), [`ui/dr-ui/src/masks_ui.rs:908`](../ui/dr-ui/src/masks_ui.rs#L908), [`ui/dr-ui/src/masks_ui.rs:930`](../ui/dr-ui/src/masks_ui.rs#L930), [`ui/dr-ui/ui/app.slint:1903`](../ui/dr-ui/ui/app.slint#L1903), [`ui/dr-ui/ui/collections.slint:4`](../ui/dr-ui/ui/collections.slint#L4), [`ui/dr-ui/ui/collections.slint:682`](../ui/dr-ui/ui/collections.slint#L682) |
+| FR-UI-4 | [`ui/dr-ui/src/collections_ui.rs:111`](../ui/dr-ui/src/collections_ui.rs#L111), [`ui/dr-ui/src/collections_ui.rs:124`](../ui/dr-ui/src/collections_ui.rs#L124), [`ui/dr-ui/src/collections_ui.rs:1450`](../ui/dr-ui/src/collections_ui.rs#L1450), [`ui/dr-ui/src/collections_ui.rs:1464`](../ui/dr-ui/src/collections_ui.rs#L1464), [`ui/dr-ui/src/collections_ui.rs:1509`](../ui/dr-ui/src/collections_ui.rs#L1509), [`ui/dr-ui/src/collections_ui.rs:152`](../ui/dr-ui/src/collections_ui.rs#L152), [`ui/dr-ui/src/collections_ui.rs:1607`](../ui/dr-ui/src/collections_ui.rs#L1607), [`ui/dr-ui/src/collections_ui.rs:1634`](../ui/dr-ui/src/collections_ui.rs#L1634), [`ui/dr-ui/src/collections_ui.rs:444`](../ui/dr-ui/src/collections_ui.rs#L444), [`ui/dr-ui/src/collections_ui.rs:472`](../ui/dr-ui/src/collections_ui.rs#L472), [`ui/dr-ui/src/collections_ui.rs:537`](../ui/dr-ui/src/collections_ui.rs#L537), [`ui/dr-ui/src/collections_ui.rs:943`](../ui/dr-ui/src/collections_ui.rs#L943), [`ui/dr-ui/src/collections_ui.rs:953`](../ui/dr-ui/src/collections_ui.rs#L953), [`ui/dr-ui/src/library_ui.rs:4123`](../ui/dr-ui/src/library_ui.rs#L4123), [`ui/dr-ui/src/library_ui.rs:4168`](../ui/dr-ui/src/library_ui.rs#L4168), [`ui/dr-ui/src/library_ui.rs:4271`](../ui/dr-ui/src/library_ui.rs#L4271), [`ui/dr-ui/src/library_ui.rs:4299`](../ui/dr-ui/src/library_ui.rs#L4299), [`ui/dr-ui/src/library_ui.rs:5007`](../ui/dr-ui/src/library_ui.rs#L5007), [`ui/dr-ui/src/library_ui.rs:5019`](../ui/dr-ui/src/library_ui.rs#L5019), [`ui/dr-ui/ui/app.slint:1599`](../ui/dr-ui/ui/app.slint#L1599), [`ui/dr-ui/ui/app.slint:580`](../ui/dr-ui/ui/app.slint#L580), [`ui/dr-ui/ui/app.slint:611`](../ui/dr-ui/ui/app.slint#L611), [`ui/dr-ui/ui/library.slint:1172`](../ui/dr-ui/ui/library.slint#L1172), [`ui/dr-ui/ui/library.slint:1179`](../ui/dr-ui/ui/library.slint#L1179), [`ui/dr-ui/ui/library.slint:1185`](../ui/dr-ui/ui/library.slint#L1185), [`ui/dr-ui/ui/library.slint:2246`](../ui/dr-ui/ui/library.slint#L2246), [`ui/dr-ui/ui/library.slint:815`](../ui/dr-ui/ui/library.slint#L815), [`ui/dr-ui/ui/library.slint:864`](../ui/dr-ui/ui/library.slint#L864), [`ui/dr-ui/ui/library.slint:883`](../ui/dr-ui/ui/library.slint#L883) |
+| FR-UI-5 | [`ui/dr-ui/src/collections_ui.rs:1`](../ui/dr-ui/src/collections_ui.rs#L1), [`ui/dr-ui/src/lib.rs:2019`](../ui/dr-ui/src/lib.rs#L2019), [`ui/dr-ui/src/lib.rs:2408`](../ui/dr-ui/src/lib.rs#L2408), [`ui/dr-ui/src/lib.rs:2593`](../ui/dr-ui/src/lib.rs#L2593), [`ui/dr-ui/src/masks_ui.rs:863`](../ui/dr-ui/src/masks_ui.rs#L863), [`ui/dr-ui/ui/app.slint:297`](../ui/dr-ui/ui/app.slint#L297), [`ui/dr-ui/ui/collections.slint:4`](../ui/dr-ui/ui/collections.slint#L4) |
 | FR-UI-7 | [`core/dr-pipeline/src/descriptor.rs:100`](../core/dr-pipeline/src/descriptor.rs#L100), [`core/dr-pipeline/src/framing.rs:259`](../core/dr-pipeline/src/framing.rs#L259) |
 | NFR-ARCH-2 | [`core/dr-catalog/src/jobs.rs:1`](../core/dr-catalog/src/jobs.rs#L1) |
-| NFR-ARCH-3 | [`ui/dr-ui/src/export.rs:1552`](../ui/dr-ui/src/export.rs#L1552), [`ui/dr-ui/src/export.rs:1578`](../ui/dr-ui/src/export.rs#L1578), [`ui/dr-ui/src/export.rs:410`](../ui/dr-ui/src/export.rs#L410), [`ui/dr-ui/src/export.rs:436`](../ui/dr-ui/src/export.rs#L436), [`ui/dr-ui/src/lib.rs:1814`](../ui/dr-ui/src/lib.rs#L1814), [`ui/dr-ui/ui/app.slint:993`](../ui/dr-ui/ui/app.slint#L993), [`ui/dr-ui/ui/library.slint:762`](../ui/dr-ui/ui/library.slint#L762) |
+| NFR-ARCH-3 | [`ui/dr-ui/src/export.rs:1552`](../ui/dr-ui/src/export.rs#L1552), [`ui/dr-ui/src/export.rs:1578`](../ui/dr-ui/src/export.rs#L1578), [`ui/dr-ui/src/export.rs:410`](../ui/dr-ui/src/export.rs#L410), [`ui/dr-ui/src/export.rs:436`](../ui/dr-ui/src/export.rs#L436), [`ui/dr-ui/src/lib.rs:1826`](../ui/dr-ui/src/lib.rs#L1826), [`ui/dr-ui/ui/app.slint:1003`](../ui/dr-ui/ui/app.slint#L1003), [`ui/dr-ui/ui/library.slint:919`](../ui/dr-ui/ui/library.slint#L919) |
 | NFR-ARCH-4 | [`core/dr-catalog/src/error.rs:1`](../core/dr-catalog/src/error.rs#L1), [`core/dr-export/src/error.rs:1`](../core/dr-export/src/error.rs#L1), [`core/dr-thumbs/src/error.rs:1`](../core/dr-thumbs/src/error.rs#L1), [`ui/dr-ui/src/export.rs:500`](../ui/dr-ui/src/export.rs#L500) |
 | NFR-OPS-1 | [`tools/traceability/src/lib.rs:266`](../tools/traceability/src/lib.rs#L266) |
 | NFR-P1 | [`core/dr-catalog/src/lib.rs:1`](../core/dr-catalog/src/lib.rs#L1), [`core/dr-catalog/src/scan.rs:1`](../core/dr-catalog/src/scan.rs#L1), [`core/dr-catalog/src/walk.rs:162`](../core/dr-catalog/src/walk.rs#L162), [`core/dr-catalog/src/walk.rs:1`](../core/dr-catalog/src/walk.rs#L1), [`tools/traceability/src/lib.rs:479`](../tools/traceability/src/lib.rs#L479) |
diff --git a/ui/dr-ui/src/lib.rs b/ui/dr-ui/src/lib.rs
index 5d5b295..3d81eac 100644
--- a/ui/dr-ui/src/lib.rs
+++ b/ui/dr-ui/src/lib.rs
@@ -1015,6 +1015,7 @@ pub fn run(paths: Vec<PathBuf>) -> Result<()> {
             let stored = settings.snapshot();
             library.set_cache_budget(stored.cache.original_budget_bytes);
             library.set_keep_opened_originals(stored.cache.keep_opened_originals);
+            library.set_timeline_bars(stored.library.timeline_bars);
         }
 
         // --- the export folder picker ----------------------------------------
@@ -1151,6 +1152,17 @@ pub fn run(paths: Vec<PathBuf>) -> Result<()> {
                 refresh_export_label(&w, &ctl);
             }
 
+            // The axis is cut into bars when the window is loaded, so a new
+            // count only shows once something reloads it. Done here, and only
+            // when the figure actually moved: a setting that appears to do
+            // nothing until the user scrolls is one they will change twice and
+            // then leave wrong.
+            if lib.set_timeline_bars(s.library.timeline_bars) {
+                if let Some(w) = weak.upgrade() {
+                    library_ui::reload(&w, &lib);
+                }
+            }
+
             // Lowering the ceiling evicts, so the figure beside it has just
             // changed — leaving the old one would show the cache still over a
             // limit that was enforced a moment ago.
diff --git a/ui/dr-ui/src/library.rs b/ui/dr-ui/src/library.rs
index 65c57b8..981d4d3 100644
--- a/ui/dr-ui/src/library.rs
+++ b/ui/dr-ui/src/library.rs
@@ -3120,44 +3120,97 @@ pub fn span_scoped(
         .and_then(|(lo, hi)| Some((lo?, hi?)))
 }
 
-/// Histogram buckets within `scope` and a date range.
+/// TRACES: FR-CAT-6
+/// The capture-time histogram as a fixed number of equal bins across
+/// `from..=to`, empty ones included.
 ///
-/// `Catalog::timeline_range` counts the whole library; a collection needs the
-/// membership join, and the rating filter applied too, or the bars disagree
-/// with the grid beneath them.
-pub fn timeline_scoped(
+/// # Why not calendar buckets
+///
+/// [`timeline_scoped`] groups by year, month, day or hour, which has two
+/// consequences the axis cannot live with.
+///
+/// It emits **only the buckets that hold photographs**, and the widget gives
+/// every bar an equal slot — so a library with a gap in it drew a February
+/// that was six months wide. The position marker, the range band and a click
+/// are all linear in time, so on a sparse library they pointed at bars that
+/// were somewhere else. Equal bins including the empty ones make a bar's
+/// position on the track and the date under it the same quantity.
+///
+/// And the **count is free to jump by a factor of twelve** between one unit
+/// and the next, so each zoom step halved the number of bars until a
+/// threshold was crossed: zooming in made the picture coarser, twice out of
+/// every three steps. A fixed count re-bins on every zoom instead, which is
+/// what makes each step show finer structure rather than the same structure
+/// drawn wider.
+///
+/// The date range is lifted from the filter, like the bars' other terms are
+/// not: this histogram is *how a range is chosen*, and drawing through the
+/// range would empty every bin outside it and leave nothing to widen into.
+///
+/// `bins` is clamped to at least one — a zero would be a division by zero in
+/// SQL, and the caller's number comes from a hand-editable settings file.
+pub fn timeline_uniform(
     catalog: &Catalog,
     scope: Option<dr_types::CollectionId>,
     filter: &RatingFilter,
-    granularity: dr_catalog::Granularity,
     from: i64,
     to: i64,
+    bins: u32,
 ) -> Result<Vec<dr_catalog::TimeBucket>, dr_catalog::CatalogError> {
-    let (clause, mut params) = scope_clause(catalog, scope)?;
+    let bins = bins.max(1) as i64;
+    // At least one second, or every photograph lands in bin zero.
+    let span = (to - from).max(1);
+    let (clause, params) = scope_clause(catalog, scope)?;
     let rated = filter.without_date_range().sql();
+
+    // The bin index is arithmetic on the stored UTC instant, not `strftime` on
+    // a local one. A bin is not a calendar unit — it has no local midnight to
+    // respect — and the axis it is drawn on is labelled from the same UTC
+    // instants, so bucketing the two differently is the one way they could
+    // disagree about which bar a photograph belongs to.
+    //
+    // `min` caps the last edge: an image captured at exactly `to` divides to
+    // `bins`, which would be a bin past the end of the axis.
+    //
+    // Integers this code owns, formatted straight in — the same rule the
+    // rating terms follow. They cannot be bound parameters here without
+    // ordering them against the scope clause's, which appears later in the
+    // text but is bound first.
     let sql = format!(
-        "SELECT min(i.captured_at) AS start, count(*) AS n FROM images i
+        "SELECT min({bins} - 1, (i.captured_at - {from}) * {bins} / {span}) AS b,
+                count(*) AS n
+           FROM images i
           WHERE {VISIBLE}{rated} AND i.captured_at IS NOT NULL{clause}
-            AND i.captured_at >= ? AND i.captured_at <= ?
-          GROUP BY strftime('{}', i.captured_at
-                            + coalesce(i.captured_offset, 0) * 60, 'unixepoch')
-          ORDER BY start ASC",
-        granularity.strftime()
+            AND i.captured_at >= {from} AND i.captured_at <= {to}
+          GROUP BY b
+          ORDER BY b ASC"
     );
-    params.push(rusqlite::types::Value::Integer(from));
-    params.push(rusqlite::types::Value::Integer(to));
 
     let conn = catalog.connection();
     let mut stmt = conn.prepare(&sql)?;
-    let rows = stmt
+    let counted = stmt
         .query_map(rusqlite::params_from_iter(params.iter()), |r| {
-            Ok(dr_catalog::TimeBucket {
-                start: r.get(0)?,
-                count: r.get::<_, i64>(1)? as u32,
-            })
+            Ok((r.get::<_, i64>(0)?, r.get::<_, i64>(1)? as u32))
         })?
         .collect::<Result<Vec<_>, _>>()?;
-    Ok(rows)
+
+    // Every bin, in order, whether or not the query returned one for it. The
+    // start is the bin's own left edge rather than the earliest photograph in
+    // it: an empty bin has no photograph to take one from, and a bar drawn at
+    // its contents' position rather than its bin's would put the axis back
+    // where the calendar buckets left it.
+    let mut bars: Vec<dr_catalog::TimeBucket> = (0..bins)
+        .map(|i| dr_catalog::TimeBucket {
+            start: from + (i * span) / bins,
+            count: 0,
+        })
+        .collect();
+    for (i, n) in counted {
+        if let Some(bar) = bars.get_mut(i.clamp(0, bins - 1) as usize) {
+            bar.count = n;
+        }
+    }
+    Ok(bars)
 }
 
 /// Total images in the catalog, honouring the rating filter.
@@ -4165,16 +4218,7 @@ mod tests {
     fn the_histogram_ignores_the_range_it_is_used_to_choose() {
         // Drawing the axis through the chosen range would collapse it onto the
         // selection, leaving nowhere to widen back out from.
-        let catalog = scanned(3);
-        let conn = catalog.connection();
-        for (n, at) in [(1, 1_000), (2, 5_000), (3, 9_000)] {
-            conn.execute(
-                "UPDATE images SET captured_at = ?2 WHERE source_ref LIKE ?1",
-                rusqlite::params![format!("%IMG_000{n}%"), at],
-            )
-            .unwrap();
-        }
-
+        let catalog = dated_three();
         let ranged = RatingFilter {
             captured_from: Some(4_000),
             captured_to: Some(6_000),
@@ -4187,6 +4231,105 @@ mod tests {
         );
     }
 
+    /// Three photographs at 1000, 5000 and 9000 seconds.
+    fn dated_three() -> Catalog {
+        let catalog = scanned(3);
+        let conn = catalog.connection();
+        for (n, at) in [(1, 1_000), (2, 5_000), (3, 9_000)] {
+            conn.execute(
+                "UPDATE images SET captured_at = ?2 WHERE source_ref LIKE ?1",
+                rusqlite::params![format!("%IMG_000{n}%"), at],
+            )
+            .unwrap();
+        }
+        catalog
+    }
+
+    #[test]
+    fn the_histogram_has_the_number_of_bins_it_was_asked_for() {
+        // Fixed, whatever the span holds. The axis draws one bar per bin and
+        // positions it by index, so a query that returned only the occupied
+        // ones would put the bars at the wrong dates.
+        let catalog = dated_three();
+        let filter = RatingFilter::default();
+        for bins in [1_u32, 8, 32, 64] {
+            let bars = timeline_uniform(&catalog, None, &filter, 1_000, 9_000, bins).unwrap();
+            assert_eq!(bars.len() as u32, bins);
+            assert_eq!(
+                bars.iter().map(|b| b.count).sum::<u32>(),
+                3,
+                "every photograph is counted exactly once"
+            );
+        }
+    }
+
+    #[test]
+    fn a_bin_starts_where_the_axis_says_it_does() {
+        // The bar's start is its bin's left edge, not the earliest photograph
+        // in it. It is what the position marker and the range band are drawn
+        // against, and an empty bin has no photograph to borrow a date from.
+        let catalog = dated_three();
+        let bars = timeline_uniform(&catalog, None, &RatingFilter::default(), 0, 8_000, 8).unwrap();
+        for (i, bar) in bars.iter().enumerate() {
+            assert_eq!(bar.start, i as i64 * 1_000);
+        }
+        // 1000 and 5000 land in their own bins, 9000 is past the end.
+        assert_eq!(bars[1].count, 1);
+        assert_eq!(bars[5].count, 1);
+        assert_eq!(bars.iter().map(|b| b.count).sum::<u32>(), 2);
+    }
+
+    #[test]
+    fn the_last_bin_holds_a_photograph_taken_at_the_very_end() {
+        // The division puts an image captured at exactly `to` one bin past the
+        // axis. Uncapped it would be dropped from the histogram — and it is
+        // precisely the image that defines the extent, so it would go missing
+        // on every unzoomed library.
+        let catalog = dated_three();
+        let bars =
+            timeline_uniform(&catalog, None, &RatingFilter::default(), 1_000, 9_000, 4).unwrap();
+        assert_eq!(bars.len(), 4);
+        assert_eq!(bars[3].count, 1, "the image at 9000 is in the last bin");
+        assert_eq!(bars[0].count, 1);
+    }
+
+    #[test]
+    fn the_bins_ignore_the_range_they_are_used_to_choose() {
+        // Same rule as the extent: the bars outside the band are what the
+        // range is widened back into, so counting through the range would
+        // leave every one of them empty.
+        let catalog = dated_three();
+        let ranged = RatingFilter {
+            captured_from: Some(4_000),
+            captured_to: Some(6_000),
+            ..Default::default()
+        };
+        let bars = timeline_uniform(&catalog, None, &ranged, 1_000, 9_000, 4).unwrap();
+        assert_eq!(
+            bars.iter().map(|b| b.count).sum::<u32>(),
+            3,
+            "all three, not just the one inside the range"
+        );
+    }
+
+    #[test]
+    fn the_bins_still_honour_every_other_filter() {
+        // A histogram of the five-star frames is a fair question, and the bars
+        // have to agree with the grid beneath them.
+        let catalog = dated_three();
+        let strict = RatingFilter {
+            min_rating: 4,
+            ..Default::default()
+        };
+        let bars = timeline_uniform(&catalog, None, &strict, 1_000, 9_000, 4).unwrap();
+        assert_eq!(bars.len(), 4, "the axis keeps its shape");
+        assert_eq!(
+            bars.iter().map(|b| b.count).sum::<u32>(),
+            0,
+            "nothing here is rated"
+        );
+    }
+
     fn entry(path: &str, file_id: u64, size: u64) -> RemoteEntry {
         RemoteEntry {
             id: RemoteId::Stable(file_id),
diff --git a/ui/dr-ui/src/library_ui.rs b/ui/dr-ui/src/library_ui.rs
index bb85245..337db82 100644
--- a/ui/dr-ui/src/library_ui.rs
+++ b/ui/dr-ui/src/library_ui.rs
@@ -256,6 +256,16 @@ pub struct LibraryController {
     /// small budget still keeps a working set. A metered or small-disk device
     /// wants the first.
     keep_opened: std::cell::Cell<bool>,
+    /// TRACES: FR-CAT-6
+    /// How many bars the capture-time axis is cut into, from the settings
+    /// page.
+    ///
+    /// Held here beside the cache budget and for the same reason: the axis is
+    /// redrawn from a dozen callbacks that have no config access, and reading
+    /// a JSON file on every scroll to answer "how many bars" would be the
+    /// wrong shape of question. A `Cell` because the page can change it while
+    /// a library is open.
+    timeline_bars: std::cell::Cell<u32>,
     /// Where every worker this module starts reports what it is doing.
     ///
     /// Held on the controller rather than passed to each function because the
@@ -311,9 +321,22 @@ impl LibraryController {
             keep_opened: std::cell::Cell::new(
                 dr_types::CacheSettings::default().keep_opened_originals,
             ),
+            timeline_bars: std::cell::Cell::new(dr_types::LibrarySettings::default().timeline_bars),
         })
     }
 
+    /// TRACES: FR-CAT-6
+    /// How many bars the capture-time axis is cut into.
+    ///
+    /// Answers whether it changed, so the caller can leave the grid alone when
+    /// it did not: this is set on every settings edit, and reloading the
+    /// window because a user changed their export folder would be a visible
+    /// stutter for nothing.
+    pub fn set_timeline_bars(&self, bars: u32) -> bool {
+        let bars = bars.max(1);
+        self.timeline_bars.replace(bars) != bars
+    }
+
     /// TRACES: FR-NC-6a
     /// Whether a develop open should keep the original it downloads.
     ///
@@ -1910,7 +1933,12 @@ fn load_window(window: &AppWindow, ctl: &Rc<LibraryController>) {
     } else {
         library::total_images_scoped(catalog, scope, &filter).unwrap_or(0)
     };
+    // Read before it is overwritten: the property still holds what the library
+    // was last time this ran, and a library that has become shorter is the
+    // signal that something was deleted out from under the view.
+    let was = window.get_library_total().max(0) as usize;
     window.set_library_total(total as i32);
+    let shrank = total < was;
 
     // Clamp so a scrub to the very end still fills the window rather than
     // showing a handful of cells.
@@ -2064,6 +2092,21 @@ fn load_window(window: &AppWindow, ctl: &Rc<LibraryController>) {
     // they are refreshed here rather than per cell.
     refresh_rating_counts(window, catalog);
 
+    // The library got shorter while the view was looking at it — a delete.
+    //
+    // Two things have already moved by this point and neither touches the
+    // viewport: the scrollable height shrank, and `offset` was re-clamped so
+    // the loaded window still fills. So the view is left pointing either past
+    // the end of the content (a blank grid) or at a different part of the
+    // library (an apparent jump to nowhere). Re-anchoring here puts it back on
+    // the photographs the user was actually looking at.
+    //
+    // Only on a shrink. Doing it on every load would fight a scrub, which sets
+    // exactly this property to go somewhere the user asked for.
+    if shrank {
+        restore_position(window, ctl);
+    }
+
     if total == 0 {
         return;
     }
@@ -3531,6 +3574,12 @@ fn refresh_timeline(window: &AppWindow, catalog: &Catalog, ctl: &Rc<LibraryContr
     // fortnight in Arosa landed in one column of a fifteen-year axis.
     let scope = *ctl.scope.borrow();
     let filter = *ctl.filter.borrow();
+    // Passed whole, date range included, and both queries below lift that
+    // range themselves — see `span_scoped` and `timeline_uniform`. Every other
+    // term still applies, because a histogram of the five-star frames is a
+    // fair question; the range does not, because the axis is *how a range is
+    // chosen* and drawing through it would empty every bin outside the band
+    // and leave nothing to widen back into.
     let span = match library::span_scoped(catalog, scope, &filter) {
         Some(s) => s,
         None => {
@@ -3542,27 +3591,24 @@ fn refresh_timeline(window: &AppWindow, catalog: &Catalog, ctl: &Rc<LibraryContr
         }
     };
 
-    // A chosen date range is what the axis draws, when there is one.
+    // A range is drawn *over* this span as a band, not substituted for it —
+    // see the band below. The scale a narrow range deserves is reached by
+    // zooming the axis instead, which is a gesture a finger has (pinch) and
+    // does not disturb the range while it is being adjusted.
     //
-    // It used to keep drawing the full extent while a range was on, because
-    // the axis was the only way back out: narrow it to the range and there
-    // would be nothing left to widen from. The range now has typed ends, and
-    // those are the way back out — so the axis is free to show the span the
-    // user actually asked about, at the granularity that span deserves. A
-    // fortnight drawn across fifteen years is one column; drawn across itself
-    // it is fourteen days.
-    let span = match (filter.captured_from, filter.captured_to) {
-        (Some(from), Some(to)) if to > from => (from, to),
-        _ => span,
-    };
-
     // Zoom narrows the span around wherever the view sits rather than around
     // the library's midpoint, so zooming in keeps what you were looking at.
     let zoom = *ctl.timeline_zoom.borrow();
     let (from, to) = zoomed_span(span, zoom, *ctl.timeline_centre.borrow());
 
-    let granularity = dr_catalog::Granularity::for_span(to - from);
-    let buckets = match library::timeline_scoped(catalog, scope, &filter, granularity, from, to) {
+    // A fixed number of equal bins, re-cut on every zoom (FR-CAT-6). The
+    // count is the user's — see `LibrarySettings::timeline_bars` for why the
+    // calendar units it replaced made zooming in draw a coarser picture.
+    let bins = ctl.timeline_bars.get().max(1);
+    // Calendar units survive as a *label* vocabulary: what a bin is called
+    // depends on how long it is, not on how the counting was done.
+    let granularity = dr_catalog::Granularity::for_bucket((to - from).max(1) / bins as i64);
+    let buckets = match library::timeline_uniform(catalog, scope, &filter, from, to, bins) {
         Ok(b) => b,
         Err(e) => {
             log::debug!("timeline: {e}");
@@ -3596,7 +3642,16 @@ fn refresh_timeline(window: &AppWindow, catalog: &Catalog, ctl: &Rc<LibraryContr
                 // Square root rather than linear: it keeps a 3-image day
                 // visible beside a 400-image one without a log scale's
                 // misleading flatness.
-                height: ((b.count as f32 / peak as f32).sqrt()).clamp(0.02, 1.0),
+                //
+                // A bin holding nothing draws nothing. The floor exists so a
+                // quiet day is not rounded away, and empty bins are common now
+                // that every one of them is emitted — a sliver on each would
+                // draw a library that has photographs in months it does not.
+                height: if b.count == 0 {
+                    0.0
+                } else {
+                    ((b.count as f32 / peak as f32).sqrt()).clamp(0.02, 1.0)
+                },
                 start: b.start as i32,
                 count: b.count as i32,
                 label: format_bucket(b.start, granularity).into(),
@@ -3618,12 +3673,33 @@ fn refresh_timeline(window: &AppWindow, catalog: &Catalog, ctl: &Rc<LibraryContr
     // slot contained the instant — near enough on a dense uniform axis, plainly
     // wrong on a sparse one, and never under the click.
     let current = *ctl.current_bucket.borrow();
-    let fraction = current
-        .map(|t| ((t - from) as f64 / (to - from).max(1) as f64).clamp(0.0, 1.0) as f32)
-        .unwrap_or(-1.0);
+    let fraction = current.map(|t| fraction_at((from, to), t)).unwrap_or(-1.0);
 
-    window.set_library_current_bucket(current.unwrap_or(0) as i32);
+    // The chosen range in those same coordinates, for the band. Both ends or
+    // neither: half a band is a line the user cannot tell from a handle.
+    let (band_from, band_to) = match (filter.captured_from, filter.captured_to) {
+        (Some(a), Some(b)) => (fraction_at((from, to), a), fraction_at((from, to), b)),
+        _ => (-1.0, -1.0),
+    };
+
+    // Which bar to light: the *bin* holding the grid's instant, not the
+    // instant itself. A bar's start is its bin's left edge — one of a fixed
+    // set of positions — so comparing it against an arbitrary capture time
+    // would light nothing, where before every bar started on a photograph.
+    //
+    // Taken from the bars themselves rather than recomputed, because the edges
+    // are integer division and a second spelling of `from + i * span / bins`
+    // is a second chance to be a second out.
+    let lit = current
+        .and_then(|t| {
+            let i = bin_of((from, to), t, bins);
+            buckets.get(i).map(|b| b.start)
+        })
+        .unwrap_or(0);
+    window.set_library_current_bucket(lit as i32);
     window.set_library_current_fraction(fraction);
+    window.set_library_range_from_fraction(band_from);
+    window.set_library_range_to_fraction(band_to);
     window.set_library_timeline_anchored(current.is_some());
     window
         .set_library_timeline_label(format!("{} – {}", format_date(from), format_date(to)).into());
@@ -3633,8 +3709,16 @@ fn refresh_timeline(window: &AppWindow, catalog: &Catalog, ctl: &Rc<LibraryContr
 /// Whether this bucket size is fine enough for month labels to mean anything.
 ///
 /// A year-bucketed axis labelled by month would put twelve labels on one bar.
+/// Month-sized bins are excluded too, now that the axis has a fixed number of
+/// them: a bin of about a month changes month at nearly every bar, so the rule
+/// below would write a label on all sixty-four of them and the right-hand
+/// strip would be a column of overlapping text. Below a month the labels are
+/// occasional again, which is what makes them readable.
 fn granularity_labels_months(g: dr_catalog::Granularity) -> bool {
-    !matches!(g, dr_catalog::Granularity::Year)
+    matches!(
+        g,
+        dr_catalog::Granularity::Day | dr_catalog::Granularity::Hour
+    )
 }
 
 /// Full month name, for the grid's headings.
@@ -3663,6 +3747,64 @@ fn month_abbrev(m: i64) -> &'static str {
     NAMES[((m - 1).clamp(0, 11)) as usize]
 }
 
+/// The instant a fraction along a span names.
+///
+/// One home for `from + (to - from) * f`, because three things now depend on
+/// it agreeing with itself: a scrub, the marker drawn where that scrub landed,
+/// and the ends of the date range dragged along the same axis. A second copy
+/// is a second chance for a click and what it produces to disagree.
+fn instant_at(span: (i64, i64), f: f32) -> i64 {
+    span.0 + ((span.1 - span.0) as f64 * f.clamp(0.0, 1.0) as f64) as i64
+}
+
+/// Where an instant sits along a span, 0..1. The exact inverse of
+/// [`instant_at`], clamped so an instant off the end of the axis is drawn at
+/// the end it went past rather than off the widget.
+fn fraction_at(span: (i64, i64), t: i64) -> f32 {
+    ((t - span.0) as f64 / (span.1 - span.0).max(1) as f64).clamp(0.0, 1.0) as f32
+}
+
+/// Which of `bins` equal bins across `span` holds `t`.
+///
+/// The same arithmetic `library::timeline_uniform` groups by, in the same
+/// order — integer division on the offset from the start — so the bar this
+/// names is the bar that counted the photograph. Clamped, because the grid's
+/// instant can sit outside a zoomed axis.
+fn bin_of(span: (i64, i64), t: i64, bins: u32) -> usize {
+    let width = (span.1 - span.0).max(1);
+    let i = (t - span.0).clamp(0, width) * bins as i64 / width;
+    i.clamp(0, bins as i64 - 1) as usize
+}
+
+/// Midnight UTC at or before `t`.
+///
+/// `rem_euclid` rather than `%`: a negative timestamp — a scanned archive
+/// holds photographs from before 1970 — would otherwise truncate *towards*
+/// zero and name the following midnight, putting the day off by one.
+fn day_start(t: i64) -> i64 {
+    t - t.rem_euclid(86_400)
+}
+
+/// The range a drag of the band's two ends names, as it is stored.
+///
+/// Whole days at both ends, which does three things. It is what the typed
+/// fields mean, so a dragged range reads back out of them as the two days it
+/// covers rather than as two instants nobody chose. It gives the band a floor:
+/// two handles dragged onto each other name one day, not an empty grid. And it
+/// makes the gesture reproducible — the same day is the same range however
+/// close the finger came to a bucket edge.
+///
+/// Ends dragged past each other are put back in order rather than refused: the
+/// user has described the same two edges either way round.
+fn dragged_range(span: (i64, i64), from: f32, to: f32) -> (i64, i64) {
+    let (from, to) = if from <= to { (from, to) } else { (to, from) };
+    let start = day_start(instant_at(span, from));
+    // Inclusive of the closing day. `parse_date` gives midnight, and a range
+    // ending there would exclude every photograph taken on the day named.
+    let end = day_start(instant_at(span, to)) + 86_400 - 1;
+    (start, end)
+}
+
 /// Narrow a span by a zoom level, centred on `centre`.
 ///
 /// Each step halves or doubles the visible duration. Clamped to the library's
@@ -3701,6 +3843,12 @@ fn zoomed_span(full: (i64, i64), zoom: i32, centre: Option<i64>) -> (i64, i64) {
 /// collection, a scrub landed at an instant the collection did not contain and
 /// the view jumped somewhere the user had not asked for.
 fn catalog_span(catalog: &Catalog, ctl: &Rc<LibraryController>) -> Option<(i64, i64)> {
+    // `span_scoped` reports the extent with the date range lifted, which is
+    // what every caller here wants: they measure the axis that is on screen,
+    // and that axis spans the library rather than the chosen range. Measured
+    // through the range, narrowing it would move the ground under the very
+    // handles doing the narrowing — each drag re-scaling the axis, so the next
+    // one meant something else.
     library::span_scoped(catalog, *ctl.scope.borrow(), &ctl.filter.borrow())
 }
 
@@ -3779,6 +3927,32 @@ fn scrub_to(window: &AppWindow, ctl: &Rc<LibraryController>, when: i64) {
     load_window(window, ctl);
 }
 
+/// TRACES: FR-CAT-7
+/// Put the view back where the photographer was after the library changed
+/// under it.
+///
+/// Deleting is the case this exists for. The grid draws each cell at its
+/// absolute place in the library — `(i + offset) / columns` — and a delete does
+/// two things at once: the library gets shorter, and `offset` is re-clamped
+/// downward so the loaded window still fills. Neither touches `viewport-y`, so
+/// the view ends up pointing at a different part of the library, or past the
+/// end of it entirely. That is the "goes blank and jumps somewhere random".
+///
+/// Anchored on the *ordinal the view was showing*, clamped into what is left.
+/// Not on the deleted image's own position, which no longer exists, and not on
+/// the top of the library, which would throw away the scroll position on every
+/// delete — after removing one frame from a wall of twenty thousand, the next
+/// one you want is the one that just moved into its place.
+pub fn restore_position(window: &AppWindow, ctl: &Rc<LibraryController>) {
+    let total = window.get_library_total().max(0) as usize;
+    if total == 0 {
+        return;
+    }
+    let anchor = (*ctl.offset.borrow()).min(total - 1);
+    window.set_library_scroll_to(anchor as i32);
+    window.set_library_scroll_token(window.get_library_scroll_token() + 1);
+}
+
 /// Format a bucket start for the histogram's hover label.
 fn format_bucket(t: i64, g: dr_catalog::Granularity) -> String {
     let (y, m, d, h) = civil_from_unix(t);
@@ -4376,7 +4550,7 @@ pub fn wire<F>(
                 *ctl.timeline_zoom.borrow(),
                 *ctl.timeline_centre.borrow(),
             );
-            let when = from + ((to - from) as f64 * f.clamp(0.0, 1.0) as f64) as i64;
+            let when = instant_at((from, to), f);
             drop(borrow);
             scrub_to(&w, &ctl, when);
         });
@@ -4626,12 +4800,18 @@ pub fn wire<F>(
         });
     }
 
-    // Narrow the grid to the period the histogram is showing.
+    // Turn the range on, over the period the histogram is showing.
     //
     // The range is taken from the timeline rather than typed into two date
     // fields: finding the fortnight is what the histogram is *for*, and having
     // found it the user should not have to read the dates off the axis and key
-    // them back in. Zoom, then say "only that".
+    // them back in.
+    //
+    // A starting point rather than the answer. What this puts on the axis is a
+    // band with two draggable ends, and dragging them is how the range is
+    // actually stated — on a phone it is the only way that does not need a
+    // keyboard. Seeding it to the whole visible span means the first drag
+    // narrows from what the user is already looking at.
     //
     // Toggling off clears both ends rather than remembering them — a range you
     // cannot see the extent of is a filter that looks like an empty library.
@@ -4670,7 +4850,12 @@ pub fn wire<F>(
                             )
                         })
                 };
-                if let Some((from, to)) = seeded {
+                if let Some(span) = seeded {
+                    // Through the same days-inclusive conversion a drag uses,
+                    // so a seeded range and a dragged one are the same kind of
+                    // thing — and so `show_range` reads this one back out as
+                    // the two days it covers.
+                    let (from, to) = dragged_range(span, 0.0, 1.0);
                     let mut f = ctl.filter.borrow_mut();
                     f.captured_from = Some(from);
                     f.captured_to = Some(to);
@@ -4686,6 +4871,59 @@ pub fn wire<F>(
         });
     }
 
+    // TRACES: FR-CAT-6 | FR-UI-2
+    // The ends of the range, dragged along the axis they were chosen from.
+    //
+    // This is the control the two typed fields were standing in for. On a
+    // phone they could not do the job: `YYYY-MM-DD` keyed into a 108px field
+    // behind a soft keyboard, to name a day already drawn on the axis a thumb
+    // away. Nor was the chip a way round them — its span comes from the
+    // timeline's zoom and pan, and those are a wheel and a middle button,
+    // neither of which a touch screen has. So on Android the date range was a
+    // filter that could be turned on and not aimed.
+    //
+    // The span is recomputed here rather than remembered from the last draw.
+    // It is the same expression `refresh_timeline` uses, over the same
+    // date-lifted extent, so a handle dropped at a fraction of the track names
+    // the instant that fraction was drawn at.
+    {
+        let weak = window.as_weak();
+        let ctl = ctl.clone();
+        window.on_library_timeline_range_changed(move |a, b| {
+            let Some(w) = weak.upgrade() else { return };
+            let borrow = ctl.catalog.borrow();
+            let Some(catalog) = borrow.as_ref() else {
+                return;
+            };
+            let Some(full) = catalog_span(catalog, &ctl) else {
+                return;
+            };
+            let span = zoomed_span(
+                full,
+                *ctl.timeline_zoom.borrow(),
+                *ctl.timeline_centre.borrow(),
+            );
+            drop(borrow);
+
+            let (from, to) = dragged_range(span, a, b);
+            {
+                let mut f = ctl.filter.borrow_mut();
+                f.captured_from = Some(from);
+                f.captured_to = Some(to);
+            }
+
+            // A dragged range cannot be mistyped, so any standing complaint
+            // about the fields is now about a range that no longer exists.
+            w.set_library_range_invalid(false);
+            w.set_library_range_active(true);
+            show_range(&w, &ctl);
+            // Reloads the window, and `load_window` redraws the timeline —
+            // which is what puts the band back under the finger that dropped
+            // it, at the whole days it was snapped to.
+            refilter(&w, &ctl);
+        });
+    }
+
     // TRACES: FR-CAT-6
     // The ends of the range, typed.
     //
@@ -4721,7 +4959,7 @@ pub fn wire<F>(
                 // Inclusive of the last day. "To the 5th" means the whole of
                 // the 5th — `parse_date` returns its midnight, and a range
                 // ending there would exclude every photograph taken on the day
-                // the user named.
+                // the user named. The same rule `dragged_range` applies.
                 f.captured_to = Some(to + 86_400 - 1);
             }
             w.set_library_range_invalid(false);
@@ -4885,12 +5123,6 @@ fn stop(slot: &RefCell<Option<slint::Timer>>) {
 mod tests {
     use super::*;
 
-    /// The instant a scrub fraction names within a span, as the handler
-    /// computes it.
-    fn instant_at(span: (i64, i64), f: f32) -> i64 {
-        span.0 + ((span.1 - span.0) as f64 * f.clamp(0.0, 1.0) as f64) as i64
-    }
-
     #[test]
     fn a_scrub_fraction_interpolates_within_the_span() {
         // The point of going fractional: a slow drag must advance
@@ -4904,12 +5136,6 @@ mod tests {
         assert_ne!(instant_at(span, 0.10), instant_at(span, 0.11));
     }
 
-    /// Where the marker is drawn for an instant, as `refresh_timeline`
-    /// computes it.
-    fn marker_at(span: (i64, i64), t: i64) -> f32 {
-        ((t - span.0) as f64 / (span.1 - span.0).max(1) as f64).clamp(0.0, 1.0) as f32
-    }
-
     #[test]
     fn the_marker_lands_on_the_fraction_that_was_clicked() {
         // The bug this guards: the marker was placed from a *bar index* while
@@ -4917,7 +5143,7 @@ mod tests {
         // the pointer. Marker and click must be inverses.
         let span = (1_000, 9_000);
         for f in [0.0_f32, 0.1, 0.25, 0.5, 0.75, 1.0] {
-            let round_trip = marker_at(span, instant_at(span, f));
+            let round_trip = fraction_at(span, instant_at(span, f));
             assert!(
                 (round_trip - f).abs() < 1e-3,
                 "clicked {f}, marker drawn at {round_trip}"
@@ -4930,8 +5156,8 @@ mod tests {
         // Zooming in leaves the grid's instant outside the axis. The marker
         // belongs at the edge it went past, not off the widget.
         let span = (1_000, 2_000);
-        assert_eq!(marker_at(span, 0), 0.0);
-        assert_eq!(marker_at(span, 5_000), 1.0);
+        assert_eq!(fraction_at(span, 0), 0.0);
+        assert_eq!(fraction_at(span, 5_000), 1.0);
     }
 
     #[test]
@@ -4943,6 +5169,92 @@ mod tests {
         assert_eq!(instant_at(span, 9.9), 200);
     }
 
+    /// A fortnight in March 2024, in whole days, as the axis would span it.
+    const MARCH: (i64, i64) = (1_709_251_200, 1_710_460_800);
+
+    #[test]
+    fn a_dragged_range_covers_whole_days_at_both_ends() {
+        // What makes a dragged range the same kind of thing as a typed one:
+        // `show_range` reads the closing day back out of the stored second, so
+        // an end left mid-afternoon would be shown as the day before.
+        let (from, to) = dragged_range(MARCH, 0.13, 0.61);
+        assert_eq!(day_start(from), from, "opens at a midnight");
+        assert_eq!(
+            day_start(to + 1),
+            to + 1,
+            "closes at the last second of a day"
+        );
+        assert_eq!(dr_types::format_date(from), "2024-03-02");
+        assert_eq!(dr_types::format_date(to - 86_400 + 1), "2024-03-09");
+    }
+
+    #[test]
+    fn ends_dragged_past_each_other_name_the_same_range() {
+        // Pulling the early end below the late one is how a range that was
+        // narrowed too far gets corrected; refusing it would make starting
+        // again the easier move.
+        assert_eq!(
+            dragged_range(MARCH, 0.6, 0.2),
+            dragged_range(MARCH, 0.2, 0.6)
+        );
+    }
+
+    #[test]
+    fn both_ends_dragged_together_name_one_day() {
+        // The floor the day snapping buys. Two handles on the same pixel is a
+        // gesture that happens; an empty grid is not what it means.
+        let (from, to) = dragged_range(MARCH, 0.5, 0.5);
+        assert_eq!(to - from, 86_399);
+    }
+
+    #[test]
+    fn the_band_is_drawn_where_the_handle_was_dropped() {
+        // The band is placed by `fraction_at` and the range comes from
+        // `instant_at`. If those two ever disagreed the band would settle
+        // somewhere other than where the finger let go, which reads as the
+        // drag having been ignored.
+        for f in [0.0_f32, 0.25, 0.5, 0.75, 1.0] {
+            let (from, _) = dragged_range(MARCH, f, f);
+            let drawn = fraction_at(MARCH, from);
+            // Within a day of the span, which is the snapping and nothing else.
+            let day = 86_400.0 / (MARCH.1 - MARCH.0) as f32;
+            assert!((drawn - f).abs() <= day, "dropped at {f}, drawn at {drawn}");
+        }
+    }
+
+    #[test]
+    fn every_instant_on_the_axis_lands_in_a_bin() {
+        // The bar under a date and the bar that counted it must be the same
+        // bar: `bin_of` is the UI's copy of the division the SQL groups by.
+        let span = (1_000, 9_000);
+        assert_eq!(bin_of(span, 1_000, 8), 0);
+        assert_eq!(bin_of(span, 1_999, 8), 0);
+        assert_eq!(bin_of(span, 2_000, 8), 1);
+        // The last instant belongs to the last bin rather than to one past it.
+        assert_eq!(bin_of(span, 9_000, 8), 7);
+    }
+
+    #[test]
+    fn an_instant_off_the_zoomed_axis_lands_at_the_end_it_went_past() {
+        // Zooming in leaves the grid's position outside the span. The lit bar
+        // belongs at the edge, not at an index that does not exist.
+        let span = (1_000, 9_000);
+        assert_eq!(bin_of(span, -50_000, 8), 0);
+        assert_eq!(bin_of(span, 50_000, 8), 7);
+        // And a degenerate axis still answers with a bin.
+        assert_eq!(bin_of((5, 5), 5, 32), 0);
+    }
+
+    #[test]
+    fn a_day_before_1970_starts_at_its_own_midnight() {
+        // `%` truncates towards zero, which on a negative timestamp names the
+        // *following* midnight — a scanned archive of negatives would have
+        // every range off by a day at the early end.
+        assert_eq!(day_start(-1), -86_400);
+        assert_eq!(day_start(-86_400), -86_400);
+        assert_eq!(day_start(-86_401), -172_800);
+    }
+
     /// One pinch update, as the handler applies it: fold the ratio in, take
     /// out whole doublings, carry the remainder.
     fn pinch_step(accum: &mut f32, ratio: f32) -> i32 {
@@ -5189,32 +5501,38 @@ mod tests {
         assert_eq!(y, 1969);
     }
 
-    /// The axis follows a chosen range, so its granularity does too.
+    /// A bar is named after how long it is.
     ///
-    /// The complaint this fixes: a fortnight selected out of a fifteen-year
-    /// library was still drawn as one column of a year-per-bar axis, which is
-    /// the least useful picture of a fortnight available.
+    /// The axis no longer buckets by calendar unit — it cuts the visible span
+    /// into a fixed number of equal bins — so the unit survives only as a
+    /// vocabulary for *labelling* one. What this guards is that zooming in
+    /// never produces a coarser label: the complaint it came from was a
+    /// fortnight drawn as one column of a year-per-bar axis.
     #[test]
-    fn a_chosen_range_decides_the_granularity() {
+    fn a_bin_is_labelled_at_its_own_scale() {
         use dr_catalog::Granularity;
         const DAY: i64 = 86_400;
 
-        // Fifteen years unfiltered: a bar per year, fifteen of them.
-        assert_eq!(Granularity::for_span(15 * 365 * DAY), Granularity::Year);
+        // Fifteen years across 32 bars is nearly six months a bar, which on a
+        // ratio measure is nearer a year than a month — so the bars are
+        // labelled by year, which is what a fifteen-year axis wants anyway.
+        assert_eq!(
+            Granularity::for_bucket(15 * 365 * DAY / 32),
+            Granularity::Year
+        );
 
-        // Narrowed to a fortnight, the axis is handed the range rather than
-        // the extent, and a fortnight is drawn as fourteen days.
-        assert_eq!(Granularity::for_span(14 * DAY), Granularity::Day);
+        // A fortnight across the same 32 bars is about ten hours a bar, which
+        // is nearer a day than an hour and is labelled as a date.
+        assert_eq!(Granularity::for_bucket(14 * DAY / 32), Granularity::Day);
 
-        // A single day's shoot is drawn by the hour.
-        assert_eq!(Granularity::for_span(DAY), Granularity::Hour);
+        // Zoom on until a bar is an hour or two, and it is named by the hour.
+        assert_eq!(Granularity::for_bucket(2 * 3600), Granularity::Hour);
 
-        // The property rather than the thresholds, because the thresholds are
-        // no longer what decides it: a narrower range never produces a coarser
-        // bucket than a wider one.
+        // The property rather than the thresholds: a shorter bin never gets a
+        // coarser label than a longer one.
         let mut previous = i64::MAX;
         for days in [3650, 730, 180, 60, 14, 3, 1] {
-            let g = Granularity::for_span(days * DAY);
+            let g = Granularity::for_bucket(days * DAY / 32);
             let bucket = match g {
                 Granularity::Year => 365 * DAY,
                 Granularity::Month => 30 * DAY,
@@ -5223,7 +5541,7 @@ mod tests {
             };
             assert!(
                 bucket <= previous,
-                "{days} days chose a coarser bucket than the range above it"
+                "{days} days chose a coarser bin label than the span above it"
             );
             previous = bucket;
         }
diff --git a/ui/dr-ui/src/settings_ui.rs b/ui/dr-ui/src/settings_ui.rs
index 66d8e96..a53cc88 100644
--- a/ui/dr-ui/src/settings_ui.rs
+++ b/ui/dr-ui/src/settings_ui.rs
@@ -26,8 +26,8 @@ use std::rc::Rc;
 
 use dr_types::settings::budget;
 use dr_types::{
-    CollisionPolicy, ColourSpace, ExportFormat, ExportTarget, OutputSharpening, Settings,
-    SizingMode,
+    CollisionPolicy, ColourSpace, ExportFormat, ExportTarget, LibrarySettings, OutputSharpening,
+    Settings, SizingMode,
 };
 use slint::ComponentHandle;
 
@@ -146,6 +146,23 @@ pub fn render(window: &AppWindow, controller: &SettingsController) {
     window.set_settings_copy_includes_framing(s.develop.copy_includes_framing);
     window.set_settings_cache_usage(controller.usage_label.borrow().clone().into());
 
+    // --- library -------------------------------------------------------
+    //
+    // Labelled here rather than in the page, so the chips cannot offer a count
+    // the record does not: `BAR_CHOICES` is what `sanitise` snaps a
+    // hand-edited file to, and a third chip drawn beside them would be a
+    // choice that silently became one of the other two.
+    window.set_settings_timeline_bar_labels(slint::ModelRc::new(slint::VecModel::from(
+        LibrarySettings::BAR_CHOICES
+            .iter()
+            .map(|n| slint::SharedString::from(n.to_string()))
+            .collect::<Vec<_>>(),
+    )));
+    window.set_settings_timeline_bars_selected(index_of(
+        &LibrarySettings::BAR_CHOICES,
+        &s.library.timeline_bars,
+    ));
+
     // --- export --------------------------------------------------------
     //
     // Choice rows are sent as labels plus the selected index rather than as a
@@ -404,6 +421,18 @@ where
         });
     }
 
+    {
+        let weak = window.as_weak();
+        let ctl = controller.clone();
+        window.on_settings_timeline_bars_picked(move |i| {
+            let Some(w) = weak.upgrade() else { return };
+            if let Some(n) = LibrarySettings::BAR_CHOICES.get(i as usize).copied() {
+                ctl.edit(|s| s.library.timeline_bars = n);
+            }
+            render(&w, &ctl);
+        });
+    }
+
     {
         let weak = window.as_weak();
         let ctl = controller.clone();
diff --git a/ui/dr-ui/ui/app.slint b/ui/dr-ui/ui/app.slint
index 557b446..5a6a41e 100644
--- a/ui/dr-ui/ui/app.slint
+++ b/ui/dr-ui/ui/app.slint
@@ -463,6 +463,12 @@ export component AppWindow inherits Window {
     in property <string> library-range-to;
     in property <bool> library-range-invalid: false;
     callback library-range-edited(string, string);
+    /// The same range as a band on the capture-time axis, and the ends of it
+    /// dragged. Fractions of the span the axis is drawn over — Rust owns the
+    /// conversion both ways, so the band lands where the finger left it.
+    in property <float> library-range-from-fraction: -1;
+    in property <float> library-range-to-fraction: -1;
+    callback library-timeline-range-changed(float, float);
     callback library-retry-connection();
 
     // --- pinning a collection offline (FR-NC-6a) ---
@@ -805,6 +811,10 @@ export component AppWindow inherits Window {
     callback settings-thumbnail-unlimited-toggled(bool);
     callback settings-keep-opened-toggled(bool);
     callback settings-copy-includes-framing-toggled(bool);
+    /// TRACES: FR-CAT-6
+    in property <[string]> settings-timeline-bar-labels;
+    in property <int> settings-timeline-bars-selected: 0;
+    callback settings-timeline-bars-picked(int);
 
     in property <[string]> settings-format-labels;
     in property <int> settings-format-selected: 0;
@@ -1136,6 +1146,9 @@ in property <bool> panel-visible: true;
             thumbnail-unlimited: root.settings-thumbnail-unlimited;
             keep-opened: root.settings-keep-opened;
             copy-includes-framing: root.settings-copy-includes-framing;
+            timeline-bar-labels: root.settings-timeline-bar-labels;
+            timeline-bars-selected: root.settings-timeline-bars-selected;
+            timeline-bars-picked(i) => { root.settings-timeline-bars-picked(i); }
             cache-usage: root.settings-cache-usage;
 
             original-budget-changed(t) => { root.settings-original-budget-changed(t); }
@@ -1330,6 +1343,11 @@ in property <bool> panel-visible: true;
                     range-to: root.library-range-to;
                     range-invalid: root.library-range-invalid;
                     range-edited(a, b) => { root.library-range-edited(a, b); }
+                    range-from-fraction: root.library-range-from-fraction;
+                    range-to-fraction: root.library-range-to-fraction;
+                    timeline-range-changed(a, b) => {
+                        root.library-timeline-range-changed(a, b);
+                    }
 
                     collections-visible: root.collections-visible;
                     toggle-collections() => { root.toggle-collections(); }
diff --git a/ui/dr-ui/ui/library.slint b/ui/dr-ui/ui/library.slint
index 74339eb..aa7a616 100644
--- a/ui/dr-ui/ui/library.slint
+++ b/ui/dr-ui/ui/library.slint
@@ -68,6 +68,7 @@ export struct TimelineBar {
 // - **click or drag** — scrub the grid to that instant
 // - **drag with the middle button, or shift-drag** — pan the visible span
 // - **wheel** — zoom, which changes the bucket size Rust picks
+// - **drag either end of the range band** — narrow the grid to a period
 //
 // # One hit area, not one per bar
 //
@@ -105,6 +106,21 @@ export component Timeline inherits Rectangle {
     /// them together. Continuous, unlike the wheel's discrete steps.
     callback pinch(float);
 
+    /// TRACES: FR-CAT-6
+    /// The chosen date range, as fractions of the drawn span — the same
+    /// coordinates `scrub-to` reports and `current-fraction` is drawn in, so
+    /// the band, the marker and a click cannot disagree about where a date
+    /// sits. Negative in both when no range is set.
+    in property <float> range-from: -1;
+    in property <float> range-to: -1;
+    /// An end of the range was dragged, and where both ends now are.
+    ///
+    /// Sent on release rather than continuously: each one of these re-runs the
+    /// grid's query and reloads its window, and doing that per frame of a drag
+    /// is how a filter turns into a stutter. The band tracks the finger
+    /// meanwhile — that is what `live-from` and `live-to` are for.
+    callback range-changed(float, float);
+
     width: 96px;
     background: Theme.surface;
 
@@ -113,6 +129,21 @@ export component Timeline inherits Rectangle {
     property <length> track-height: max(1px, self.height - self.track-top - 6px);
     property <length> slot: root.track-height / max(1, root.bars.length);
 
+    property <bool> has-range: root.range-from >= 0 && root.range-to >= 0;
+    /// Which end is under the finger: 0 neither, 1 the early end, 2 the late.
+    property <int> grabbed: 0;
+    /// The ends as the drag has them, before Rust has been told. Drawing from
+    /// these is what lets the band follow the finger without the grid being
+    /// re-queried on every frame.
+    property <float> live-from;
+    property <float> live-to;
+    property <float> shown-from: root.grabbed > 0 ? root.live-from : root.range-from;
+    property <float> shown-to: root.grabbed > 0 ? root.live-to : root.range-to;
+    /// How near a press has to land to take hold of an end, as a fraction of
+    /// the track. Sized for a finger rather than a pointer: this control
+    /// exists because on a phone the range could only be typed (FR-UI-2).
+    property <float> grab: 22px / root.track-height;
+
     /// Bucket index under a y coordinate, clamped to the ends so a drag that
     /// leaves the widget still scrubs to the nearest bucket rather than
     /// stopping dead.
@@ -132,6 +163,50 @@ export component Timeline inherits Rectangle {
         return clamp((y - root.track-top) / max(1px, root.track-height), 0.0, 1.0);
     }
 
+    /// Where a fraction sits on the track. The inverse of `fraction-at`, and
+    /// it has to stay so: the band is drawn with this and dragged with that.
+    function y-at(f: float) -> length {
+        return root.track-top + clamp(f, 0.0, 1.0) * root.track-height;
+    }
+
+    /// Which end of the range a press at `y` takes hold of, 0 for neither.
+    ///
+    /// Compared in fractions rather than pixels because the ends are held as
+    /// fractions — converting them to a y here and back to a fraction on the
+    /// drag would be a second copy of the same arithmetic to keep in step.
+    function handle-at(y: length) -> int {
+        if (!root.has-range) {
+            return 0;
+        }
+        if (min(abs(root.fraction-at(y) - root.shown-from),
+                abs(root.fraction-at(y) - root.shown-to)) > root.grab) {
+            return 0;
+        }
+        // A range narrowed to a day draws one line, not two. Taking the
+        // nearer end there would always answer "the early one" and leave the
+        // late end impossible to pull back out; which side of the line the
+        // press landed on is what the user meant by it.
+        if (abs(root.shown-from - root.shown-to) < 0.001) {
+            return root.fraction-at(y) > root.shown-from ? 2 : 1;
+        }
+        return abs(root.fraction-at(y) - root.shown-from)
+             < abs(root.fraction-at(y) - root.shown-to) ? 1 : 2;
+    }
+
+    /// Move the held end to `y`.
+    ///
+    /// The ends are allowed to cross. Dragging one past the other is a normal
+    /// way to say "no, from *here* instead", and Rust puts the pair back in
+    /// order — stopping the finger dead at the other end would make a range
+    /// that has been narrowed too far harder to correct than to start again.
+    function drag-end(y: length) {
+        if (root.grabbed == 1) {
+            root.live-from = root.fraction-at(y);
+        } else {
+            root.live-to = root.fraction-at(y);
+        }
+    }
+
     // Header: the hovered bucket, else the whole span.
     Caption {
         x: 8px;
@@ -183,10 +258,68 @@ export component Timeline inherits Rectangle {
         background: Theme.active;
         opacity: root.anchored ? 1.0 : 0.35;
         y: root.anchored && root.current-fraction >= 0
-           ? root.track-top + clamp(root.current-fraction, 0.0, 1.0) * root.track-height
+           ? root.y-at(root.current-fraction)
            : root.track-top + root.track-height / 2;
     }
 
+    // --- the chosen date range ------------------------------------------
+    //
+    // Drawn *on* the axis, and dragged there. The two typed date fields under
+    // the filter chips were the only way to state a range, and on a phone they
+    // were barely a way at all: `YYYY-MM-DD` keyed into a 108px field behind a
+    // soft keyboard, to name a day that is already drawn on the axis a thumb
+    // away. The other route — zoom the axis to a period, then "limit to range"
+    // — needs a wheel to zoom and a middle button to pan, and a touch screen
+    // has neither.
+    //
+    // The axis keeps its full extent while a range is on (see
+    // `refresh_timeline`, and `Filter::without_date_range`). It has to: the
+    // bars outside the band are what the range is widened back *into*, and an
+    // axis that redrew itself to the band would move the ground under the very
+    // handles doing the narrowing.
+    if root.has-range: Rectangle {
+        // Outside the range, held back rather than hidden — those bars are
+        // still the shape of the library, and still where the band is going
+        // next. Starts at the track, so the header line stays legible.
+        Rectangle {
+            x: 0;
+            y: root.track-top;
+            width: parent.width;
+            height: max(0px, root.y-at(min(root.shown-from, root.shown-to)) - root.track-top);
+            background: Theme.surface;
+            opacity: 0.72;
+        }
+
+        Rectangle {
+            x: 0;
+            y: root.y-at(max(root.shown-from, root.shown-to));
+            width: parent.width;
+            height: max(0px, parent.height - self.y);
+            background: Theme.surface;
+            opacity: 0.72;
+        }
+
+        // The ends themselves: a line across the axis with a grip at the left,
+        // where the bars start. The right-hand strip carries the year and
+        // month labels, and a grip there would sit on top of them.
+        for edge[i] in [0, 1]: Rectangle {
+            x: 0;
+            y: root.y-at(i == 0 ? root.shown-from : root.shown-to) - 1px;
+            width: parent.width;
+            height: 2px;
+            background: Theme.active;
+
+            Rectangle {
+                x: 2px;
+                y: -5px;
+                width: 18px;
+                height: 12px;
+                border-radius: 3px;
+                background: Theme.active;
+            }
+        }
+    }
+
     // The single hit area. Everything above is inert.
     // Two-finger pinch, for tablet. There is no wheel there, so without this
     // the axis could only be zoomed by a control a finger cannot reach.
@@ -218,7 +351,11 @@ export component Timeline inherits Rectangle {
         property <bool> panning;
 
         moved => {
-            if (self.panning) {
+            if (root.grabbed > 0) {
+                // The band follows the finger. The grid hears about it on
+                // release — see `range-changed`.
+                root.drag-end(self.mouse-y);
+            } else if (self.panning) {
                 // Fractional, so a slow drag moves the view continuously
                 // rather than sitting still until it crosses a bucket edge.
                 root.pan((self.press-y - self.mouse-y) / max(1px, root.track-height));
@@ -236,11 +373,31 @@ export component Timeline inherits Rectangle {
                 // modifier state belongs to the key handler, not the pointer
                 // event, and a middle-drag is the unambiguous gesture.
                 self.panning = e.button == PointerEventButton.middle;
-                if (!self.panning && root.bars.length > 0) {
+                // An end of the range first, if the press landed on one: a
+                // press within a finger's width of a handle means the handle,
+                // not the scrub it would otherwise have been.
+                root.grabbed = self.panning ? 0 : root.handle-at(self.mouse-y);
+                if (root.grabbed > 0) {
+                    root.live-from = root.range-from;
+                    root.live-to = root.range-to;
+                } else if (!self.panning && root.bars.length > 0) {
                     root.scrub-to(root.fraction-at(self.mouse-y));
                 }
             }
-            if (e.kind == PointerEventKind.up) { self.panning = false; }
+            if (e.kind == PointerEventKind.up) {
+                self.panning = false;
+                if (root.grabbed > 0) {
+                    root.grabbed = 0;
+                    root.range-changed(root.live-from, root.live-to);
+                }
+            }
+            // A cancelled gesture — the system taking the touch for a
+            // back-swipe, most often — is not a range the user stated. The
+            // band goes back to where Rust still has it.
+            if (e.kind == PointerEventKind.cancel) {
+                self.panning = false;
+                root.grabbed = 0;
+            }
         }
 
         scroll-event(e) => {
@@ -1105,6 +1262,16 @@ export component LibraryGrid inherits Rectangle {
     in property <bool> range-active: false;
     callback toggle-date-range();
     /// TRACES: FR-CAT-6
+    /// The same range as fractions of the span the axis is drawn over, for
+    /// the band on the timeline. Negative in both when there is none.
+    ///
+    /// A second representation of one range, which is worth it: the fields
+    /// below are how a date is *stated* and the band is how a period is
+    /// *found*, and neither is a good way to do the other's job. Both come
+    /// from the one filter in Rust, so they cannot drift apart.
+    in property <float> range-from-fraction: -1;
+    in property <float> range-to-fraction: -1;
+    callback timeline-range-changed(float, float);
     /// The ends of the range, as `YYYY-MM-DD`, when one is set.
     ///
     /// Strings rather than instants because this is what the user types and
@@ -1736,10 +1903,12 @@ export component LibraryGrid inherits Rectangle {
 
                 Rectangle { width: Theme.gap; }
 
-                // Narrow the grid to the span the timeline is showing. The
-                // histogram is already how you find a period, so the range is
-                // taken from it rather than typed: zoom to the fortnight you
-                // want, then say "only that". Clicking again lifts it.
+                // Turn the range on, over the span the timeline is showing.
+                // The histogram is already how you find a period, so this is
+                // a starting point rather than the answer: the band it puts on
+                // the axis is then dragged to the fortnight you meant, which
+                // is the one way in that needs neither a keyboard nor a wheel.
+                // Pressing again lifts the range.
                 //
                 // The histogram deliberately keeps drawing the full extent
                 // while this is on, or there would be nothing left to widen
@@ -1843,6 +2012,11 @@ export component LibraryGrid inherits Rectangle {
         // into the chip row — which is 34px tall and scrolls sideways, so
         // they were both clipped and off past the right-hand edge.
         //
+        // They are no longer the only way to state a range — the band on the
+        // axis is, and on a phone it is the only usable one. These stay for
+        // the two things dragging cannot do: name an exact day, and say what
+        // the range currently is in words rather than as a position.
+        //
         // A `Rectangle` stacks its children at the origin rather than laying
         // them out, which is why putting a second row inside the chips' one
         // drew it over them instead of under them. This is a row of the
@@ -2024,7 +2198,10 @@ export component LibraryGrid inherits Rectangle {
                 current-start: root.current-bucket;
                 current-fraction: root.current-bucket-fraction;
                 anchored: root.timeline-anchored;
+                range-from: root.range-from-fraction;
+                range-to: root.range-to-fraction;
 
+                range-changed(a, b) => { root.timeline-range-changed(a, b); }
                 scrub-to(f) => { root.scrub-fraction(f); }
                 pinch(r) => { root.timeline-pinch(r); }
                 pan(d) => { root.timeline-pan(d); }
@@ -2316,6 +2493,28 @@ export component LibraryGrid inherits Rectangle {
                 // window is swapped underneath to match.
                 viewport-height: root.total-rows * (root.cell-size + Theme.gap) + Theme.gap;
 
+                // TRACES: FR-CAT-7
+                // Stay inside the content when the content shrinks.
+                //
+                // Deleting photographs makes the library shorter, and the
+                // viewport is sized to the *whole* library — so a view that was
+                // scrolled near the end is suddenly scrolled past it. Slint
+                // does not pull a Flickable back on its own, so the grid went
+                // blank: the cells were still there, above a viewport looking
+                // at empty space below them.
+                //
+                // Worse than blank, it also *moved*. Cells are drawn at
+                // `(i + offset) / columns`, and a delete re-clamps `offset`
+                // downward to keep the window full — so the same `viewport-y`
+                // now points at a different part of the library, and the grid
+                // appeared to jump somewhere arbitrary. Re-seeking below is the
+                // other half of this; this half stops the blank.
+                changed viewport-height => {
+                    if (-self.viewport-y > max(0px, self.viewport-height - self.height)) {
+                        self.viewport-y = -max(0px, self.viewport-height - self.height);
+                    }
+                }
+
                 // Report the first fully-scrolled-past row so Rust can move the
                 // window. Derived rather than eventful: Slint has no scroll
                 // callback, and a `changed` handler on a derived integer fires only
diff --git a/ui/dr-ui/ui/settings.slint b/ui/dr-ui/ui/settings.slint
index 0c972a3..5a2a1b2 100644
--- a/ui/dr-ui/ui/settings.slint
+++ b/ui/dr-ui/ui/settings.slint
@@ -111,6 +111,16 @@ export component SettingsPage inherits Rectangle {
     callback keep-opened-toggled(bool);
     callback copy-includes-framing-toggled(bool);
 
+    // --- library -------------------------------------------------------
+    /// TRACES: FR-CAT-6
+    /// The bar counts the capture-time axis can be cut into, and which one is
+    /// chosen. Labels from Rust, like every other choice row: the numbers are
+    /// the ones the settings record offers, and a list written again here
+    /// would be a second place for them to go stale.
+    in property <[string]> timeline-bar-labels;
+    in property <int> timeline-bars-selected: 0;
+    callback timeline-bars-picked(int);
+
     // --- export --------------------------------------------------------
     in property <[string]> format-labels;
     in property <int> format-selected: 0;
@@ -472,6 +482,34 @@ export component SettingsPage inherits Rectangle {
                     }
                 }
 
+                // --- library ---------------------------------------------
+                Rectangle {
+                    width: content.column;
+                    height: library-panel.preferred-height;
+
+                    library-panel := Panel {
+                        width: 100%;
+                        spacing: Theme.gap;
+
+                        PanelHeading { text: "LIBRARY"; }
+
+                        Segmented {
+                            label: "Timeline detail";
+                            // Says what the choice is *about*, since neither
+                            // number means anything on its own: it is how
+                            // finely the capture-time axis beside the grid is
+                            // divided, and the honest trade is precision
+                            // against being able to hit a bar with a thumb.
+                            hint: "bars on the capture-time axis — fewer are "
+                                  + "easier to hit with a finger, more show "
+                                  + "finer structure";
+                            options: root.timeline-bar-labels;
+                            selected: root.timeline-bars-selected;
+                            picked(i) => { root.timeline-bars-picked(i); }
+                        }
+                    }
+                }
+
                 // --- export ----------------------------------------------
                 Rectangle {
                     width: content.column;