diff --git a/core/dr-pipeline/src/history.rs b/core/dr-pipeline/src/history.rs
index 5ca977f..401c883 100644
--- a/core/dr-pipeline/src/history.rs
+++ b/core/dr-pipeline/src/history.rs
@@ -3,10 +3,9 @@
 //!
 //! # A stack of snapshots, not a stack of commands
 //!
-//! The edit graph is plain data, and [`Preset::capture`] already reduces it to
-//! the values that differ from default. So a history is a list of those, and
-//! undo is [`Preset::apply`] at full scope — the same two calls the clipboard
-//! and the sidecar are built from.
+//! The edit graph is plain data, and [`EditGraph::state`] reduces it to
+//! exactly what an edit is. So a history is a list of those, and undo is
+//! [`EditGraph::set_state`] — the same two calls the sidecar is built from.
 //!
 //! The alternative, a command per action with an inverse beside it, would be a
 //! second thing every operation had to register. Operations are *declared*
@@ -15,6 +14,34 @@
 //! A snapshot knows nothing about which operations exist, so it cannot fall
 //! behind them.
 //!
+//! # The snapshot has to be of the whole edit
+//!
+//! That last claim held for the operations and stopped holding for everything
+//! else. This stack used to snapshot a [`Preset`](crate::Preset), which is the
+//! parameter map — and a mask layer is not a parameter, a film stock is not a
+//! parameter, and a repair is not a parameter, all three deliberately so.
+//!
+//! It went wrong three times, in two different ways, which is the argument for
+//! not leaving it to anyone's memory:
+//!
+//! - **The masks and the stock went missing quietly.** Drawing a mask changed
+//!   nothing a `Preset` could see, so [`History::record`] returned `false`, no
+//!   step was opened, and the interface went on calling it in good faith. The
+//!   layer a photographer had just painted had no way back, and nothing
+//!   panicked, no test failed, and the only signal available was a `bool`
+//!   nobody was reading.
+//!
+//! - **The repairs would have gone missing loudly.** Undo is the single most
+//!   expected thing to do with a spot — place it, dislike it, take it back —
+//!   and a snapshot that could not carry the spot set would have stepped some
+//!   unrelated slider instead and left the repair on the photograph. That is
+//!   worse than no undo at all, because it looks like undo is *broken* rather
+//!   than absent. It did not happen: [`EditState`] refused to compile when the
+//!   spot set arrived in the graph, which is what that type is for.
+//!
+//! So the snapshot is an [`EditState`], and what makes that stay true is a
+//! compiler error rather than a habit — see [`crate::state`].
+//!
 //! # What makes forty events one step
 //!
 //! A drag emits a change per frame. Recorded naively that is forty undo steps,
@@ -42,15 +69,17 @@
 //! # What this is not, yet
 //!
 //! FR-DEV-5 also asks for history persisted with the catalog and named
-//! snapshots. This is per-session and in memory: closing the image forgets it.
-//! The gap that mattered was that an automatically saved mis-drag had no way
-//! back at all, and that is what this closes.
+//! snapshots, and FR-DEV-7 for comparing against a chosen history state.
+//! This is per-session and in memory, with no way to name a step or to jump
+//! to one: closing the image forgets it. The gap that mattered was that an
+//! automatically saved mis-drag had no way back at all, and that is what this
+//! closes.
 
 use std::time::{Duration, Instant};
 
 use crate::descriptor::{OpId, ParamId};
 use crate::graph::EditGraph;
-use crate::preset::{Preset, Scope};
+use crate::state::{EditState, FilmRebake};
 
 /// TRACES: FR-DEV-5 | NFR-RES-1
 /// How many states are held, the current one included.
@@ -121,6 +150,42 @@ impl Edit {
     }
 }
 
+/// TRACES: FR-DEV-5
+/// What one press of undo or redo did.
+///
+/// Not a `bool`, because stepping is not the only outcome a caller has to act
+/// on: a step that crosses a change of film leaves the graph without its
+/// tables, and only the caller can bake them back (see [`FilmRebake`]). A
+/// `bool` would let that be dropped by writing nothing at all, which is the
+/// shape of mistake this module has already made once.
+#[derive(Debug, Clone, PartialEq)]
+#[must_use = "a step that is not acted on leaves the panel showing the old values"]
+pub enum Step {
+    /// Nowhere to go — the stack is at its floor, or at its head.
+    Nowhere,
+    /// The graph now holds the neighbouring state, and this is what it is
+    /// still owed.
+    Took(FilmRebake),
+}
+
+impl Step {
+    /// Whether the graph moved.
+    ///
+    /// The panel has to be rebuilt when it did: undo replaces the values the
+    /// controls are showing and nothing here pushes them.
+    pub fn moved(&self) -> bool {
+        matches!(self, Self::Took(_))
+    }
+
+    /// The film this step needs baked back, if any.
+    pub fn rebake(&self) -> Option<&crate::state::FilmRef> {
+        match self {
+            Self::Nowhere => None,
+            Self::Took(film) => film.wanted(),
+        }
+    }
+}
+
 /// TRACES: FR-DEV-5
 /// One image's undo stack.
 ///
@@ -129,7 +194,7 @@ impl Edit {
 /// where redo goes. `states` is never empty — the state the history was opened
 /// on is the floor, and undo stops there rather than at nothing.
 pub struct History {
-    states: Vec<State>,
+    states: Vec<EditState>,
     cursor: usize,
     /// What produced `states[cursor]`, and when — the pair that decides
     /// whether the next change amends it. `None` means the current step is
@@ -137,51 +202,11 @@ pub struct History {
     last: Option<(Edit, Instant)>,
 }
 
-/// TRACES: FR-DEV-5 | FR-DEV-8
-/// One remembered state of an edit.
-///
-/// # Why this is not simply a `Preset`
-///
-/// It was, and that was right while every edit in the graph was a parameter.
-/// A [`Preset`] is a map of scalars, which is exactly what the module
-/// documentation above says a snapshot should be — nothing to register, nothing
-/// to fall behind the operation set.
-///
-/// A repair is not a scalar (see [`crate::spot`]), and undo is the single most
-/// expected thing to do with one: place a spot, dislike it, take it back. If
-/// the snapshot could not carry the spot set, that press would step some
-/// unrelated slider instead and leave the repair on the photograph — which is
-/// worse than no undo at all, because it looks like undo is broken rather than
-/// absent.
-///
-/// So the state is the pair. The same door is what the mask stack will come
-/// through — masks are outside undo today for precisely this reason, and
-/// FR-DEV-5 is not finished until they are not.
-#[derive(Debug, Clone, PartialEq)]
-struct State {
-    params: Preset,
-    spots: crate::spot::SpotSet,
-}
-
-impl State {
-    fn capture(graph: &EditGraph) -> Self {
-        Self {
-            params: Preset::capture(graph),
-            spots: graph.spots().clone(),
-        }
-    }
-
-    fn apply(&self, graph: &mut EditGraph) {
-        self.params.apply(graph, Scope::Everything);
-        *graph.spots_mut() = self.spots.clone();
-    }
-}
-
 impl History {
     /// Start from the state `graph` is in.
     pub fn new(graph: &EditGraph) -> Self {
         Self {
-            states: vec![State::capture(graph)],
+            states: vec![graph.state()],
             cursor: 0,
             last: None,
         }
@@ -208,7 +233,7 @@ impl History {
     /// [`Self::record`] with the clock supplied, so coalescing can be tested
     /// without sleeping.
     pub fn record_at(&mut self, graph: &EditGraph, edit: Edit, at: Instant) -> bool {
-        let state = State::capture(graph);
+        let state = graph.state();
         if self.states.get(self.cursor) == Some(&state) {
             return false;
         }
@@ -262,36 +287,37 @@ impl History {
         self.cursor + 1 < self.states.len()
     }
 
-    /// Step `graph` back one, returning whether there was anywhere to go.
+    /// Step `graph` back one.
     ///
-    /// Applied at [`Scope::Everything`]: framing is as undoable as colour, and
-    /// a crop drag the user wants back is one of the likelier reasons to
-    /// reach for this. The view survives, because [`Preset::apply`] preserves
-    /// it — an undo that also jumped the viewport would read as navigation.
-    pub fn undo(&mut self, graph: &mut EditGraph) -> bool {
+    /// The whole edit goes back, not merely its colour: framing is as undoable
+    /// as exposure, a mask as undoable as either, and a crop drag the user
+    /// wants back is one of the likelier reasons to reach for this. The view
+    /// survives, because [`EditGraph::set_state`] preserves it — an undo that
+    /// also jumped the viewport would read as navigation.
+    pub fn undo(&mut self, graph: &mut EditGraph) -> Step {
         let Some(target) = self.cursor.checked_sub(1) else {
-            return false;
+            return Step::Nowhere;
         };
         self.restore(graph, target)
     }
 
-    /// Step `graph` forward one, returning whether there was anywhere to go.
-    pub fn redo(&mut self, graph: &mut EditGraph) -> bool {
+    /// Step `graph` forward one.
+    pub fn redo(&mut self, graph: &mut EditGraph) -> Step {
         self.restore(graph, self.cursor + 1)
     }
 
-    fn restore(&mut self, graph: &mut EditGraph, target: usize) -> bool {
+    fn restore(&mut self, graph: &mut EditGraph, target: usize) -> Step {
         let Some(state) = self.states.get(target).cloned() else {
-            return false;
+            return Step::Nowhere;
         };
-        state.apply(graph);
+        let rebake = graph.set_state(&state);
         self.cursor = target;
         // Closes the current step. Without this, a slider moved immediately
         // after an undo would fold into the step it was just undone out of —
         // and the state the user had just recovered would be overwritten by
         // the very edit they made from it.
         self.last = None;
-        true
+        Step::Took(rebake)
     }
 
     /// How many states are held, the current one included.
@@ -307,9 +333,48 @@ impl History {
 mod tests {
     use super::*;
     use crate::framing;
+    use crate::graph::Film;
+    use crate::mask::{MaskLayer, MaskSource};
     use crate::ops::{curve, exposure, saturation};
+    use crate::state::FilmRef;
     use crate::CropRect;
 
+    /// A radial layer, the cheapest thing a photographer can put on a picture
+    /// that is not a number.
+    fn layer(id: &str) -> MaskLayer {
+        MaskLayer::new(
+            id,
+            MaskSource::Radial {
+                centre: (0.5, 0.5),
+                radii: (0.25, 0.25),
+                angle: 0.0,
+                feather: 0.2,
+            },
+        )
+    }
+
+    /// A stock with tables well-formed enough for the film node to keep them.
+    /// The numbers are not a real emulsion and do not need to be — what is
+    /// under test is whether the *choice* survives a step.
+    fn film(stock: &str) -> Film {
+        Film {
+            stock: stock.to_string(),
+            print: None,
+            tables: crate::ops::FilmTables {
+                exposure_matrix: [[1.0, 0.0, 0.0], [0.0, 1.0, 0.0], [0.0, 0.0, 1.0]],
+                curves: vec![[0.5, 0.5, 0.5]; crate::ops::film_sim::CURVE_SAMPLES],
+                curve_log_min: -3.0,
+                curve_log_max: 1.0,
+                lut: vec![[0.5, 0.5, 0.5]; 8],
+                density_max: 2.0,
+                lut_size: 2,
+                grain_particles: [0.0; 3],
+                grain_density_max: [2.0; 3],
+                grain_uniformity: 1.0,
+            },
+        }
+    }
+
     fn at(base: Instant, ms: u64) -> Instant {
         base + Duration::from_millis(ms)
     }
@@ -328,6 +393,125 @@ mod tests {
         }
     }
 
+    #[test]
+    fn a_mask_the_user_just_drew_can_be_taken_back() {
+        // The bug this module was rewritten for. A snapshot used to be a
+        // `Preset` — the parameter map — and a mask layer is deliberately not
+        // a parameter, so drawing one changed nothing the history could see:
+        // `record` returned `false`, no step opened, and the layer had no way
+        // back. Nothing failed; the undo simply was not there.
+        let mut g = EditGraph::default_chain();
+        let mut h = History::new(&g);
+
+        g.masks_mut().push(layer("l1"));
+        assert!(
+            h.record(&g, Edit::Discrete),
+            "drawing a mask has to open a step"
+        );
+
+        assert!(h.undo(&mut g).moved());
+        assert!(
+            g.masks().is_empty(),
+            "the layer survived an undo: {} left",
+            g.masks().len()
+        );
+        assert!(h.redo(&mut g).moved());
+        assert_eq!(g.masks().len(), 1, "and redo has to put it back");
+    }
+
+    #[test]
+    fn editing_a_layer_is_a_step_of_its_own() {
+        // Not merely adding and removing: the settings *inside* a layer are
+        // the part a photographer works at, and they are as far from being a
+        // graph parameter as the layer itself.
+        let mut g = EditGraph::default_chain();
+        g.masks_mut().push(layer("l1"));
+        let mut h = History::new(&g);
+
+        if let Some(l) = g.masks_mut().get_mut("l1") {
+            l.opacity = 0.4;
+        }
+        assert!(h.record(&g, Edit::Op(OpId("mask-opacity"))));
+
+        assert!(h.undo(&mut g).moved());
+        let back = g.masks().get("l1").expect("the layer itself must remain");
+        assert!(
+            (back.opacity - 1.0).abs() < 1e-6,
+            "the opacity did not come back: {}",
+            back.opacity
+        );
+    }
+
+    #[test]
+    fn undoing_across_a_change_of_film_asks_for_the_stock_back() {
+        // A stock is not a scalar either, so it went missing the same way. It
+        // needs the extra half-step because this crate cannot bake tables —
+        // the step reports what it owes rather than leaving the caller to
+        // remember, which `Version::update` is the standing evidence for.
+        let mut g = EditGraph::default_chain();
+        g.set_film(Some(film("kodak_portra_400")));
+        let mut h = History::new(&g);
+
+        g.set_film(Some(film("ilford_hp5")));
+        assert!(h.record(&g, Edit::Discrete), "a change of stock is a step");
+
+        let step = h.undo(&mut g);
+        assert!(step.moved());
+        assert_eq!(
+            step.rebake(),
+            Some(&FilmRef {
+                stock: "kodak_portra_400".into(),
+                print: None,
+            }),
+            "undo must name the stock it needs baked back"
+        );
+    }
+
+    #[test]
+    fn clearing_the_film_is_undoable_and_the_floor_has_none_to_restore() {
+        let mut g = EditGraph::default_chain();
+        let mut h = History::new(&g);
+
+        g.set_film(Some(film("kodak_portra_400")));
+        assert!(h.record(&g, Edit::Discrete));
+
+        let step = h.undo(&mut g);
+        assert!(step.moved());
+        assert_eq!(
+            step.rebake(),
+            None,
+            "there was no film to go back to, so nothing is owed"
+        );
+        assert!(g.film().is_none());
+    }
+
+    #[test]
+    fn a_step_that_leaves_the_masks_alone_does_not_copy_them() {
+        // The reason `EditState` shares its stack rather than owning it.
+        // `record` runs on every parameter change, which during a drag is once
+        // a frame; a painted brush is thousands of stroke points, and
+        // deep-copying it sixty times a second to note an exposure move would
+        // be a cost paid for nothing at all.
+        let mut g = EditGraph::default_chain();
+        g.masks_mut().push(layer("l1"));
+
+        let before = g.state();
+        g.set_param(exposure::ID, exposure::EXPOSURE, 1.0);
+        let after = g.state();
+
+        assert!(
+            std::sync::Arc::ptr_eq(&before.masks, &after.masks),
+            "an exposure move deep-copied the mask stack"
+        );
+
+        // And the sharing ends the moment a layer is actually touched, or the
+        // two snapshots would be the same object and undo would restore
+        // nothing.
+        g.masks_mut().push(layer("l2"));
+        assert!(!std::sync::Arc::ptr_eq(&before.masks, &g.state().masks));
+        assert_eq!(before.masks.len(), 1, "the older snapshot was mutated");
+    }
+
     #[test]
     fn a_whole_drag_of_one_slider_is_a_single_undo_step() {
         // The reason this type is not a plain stack. A drag emits an event per
@@ -340,7 +524,7 @@ mod tests {
         drag(&mut h, &mut g, base, 0.0, 1.5, 40);
 
         assert_eq!(h.depth(), 2, "the drag should have added exactly one state");
-        assert!(h.undo(&mut g));
+        assert!(h.undo(&mut g).moved());
         assert_eq!(g.param(exposure::ID, exposure::EXPOSURE), Some(0.0));
         assert!(!h.can_undo(), "undo went behind the state it opened in");
     }
@@ -366,7 +550,7 @@ mod tests {
         );
 
         assert_eq!(h.depth(), 3);
-        assert!(h.undo(&mut g));
+        assert!(h.undo(&mut g).moved());
         assert_eq!(g.param(exposure::ID, exposure::EXPOSURE), Some(1.0));
     }
 
@@ -389,7 +573,7 @@ mod tests {
             at(base, 16),
         );
 
-        assert!(h.undo(&mut g));
+        assert!(h.undo(&mut g).moved());
         assert_eq!(g.param(saturation::ID, saturation::SATURATION), Some(0.0));
         assert_eq!(
             g.param(exposure::ID, exposure::EXPOSURE),
@@ -446,7 +630,7 @@ mod tests {
         }
 
         assert_eq!(h.depth(), 2);
-        assert!(h.undo(&mut g));
+        assert!(h.undo(&mut g).moved());
         assert!(
             g.crop().is_full(),
             "the frame did not come back: {:?}",
@@ -502,11 +686,11 @@ mod tests {
         g.set_param(saturation::ID, saturation::SATURATION, -40.0);
         g.set_param(framing::ID, framing::ANGLE, 3.0);
         h.record(&g, Edit::Discrete);
-        let after = Preset::capture(&g);
+        let after = g.state();
 
-        assert!(h.undo(&mut g));
-        assert!(h.redo(&mut g));
-        assert_eq!(Preset::capture(&g), after);
+        assert!(h.undo(&mut g).moved());
+        assert!(h.redo(&mut g).moved());
+        assert_eq!(g.state(), after);
         assert!(!h.can_redo());
     }
 
@@ -521,7 +705,7 @@ mod tests {
 
         g.set_param(exposure::ID, exposure::EXPOSURE, 1.0);
         h.record(&g, Edit::Discrete);
-        assert!(h.undo(&mut g));
+        assert!(h.undo(&mut g).moved());
 
         g.set_param(saturation::ID, saturation::SATURATION, 25.0);
         h.record(&g, Edit::Discrete);
@@ -549,7 +733,7 @@ mod tests {
             at(base, 2000),
         );
 
-        assert!(h.undo(&mut g));
+        assert!(h.undo(&mut g).moved());
         assert_eq!(g.param(exposure::ID, exposure::EXPOSURE), Some(1.0));
 
         g.set_param(exposure::ID, exposure::EXPOSURE, 1.1);
@@ -559,7 +743,7 @@ mod tests {
             at(base, 2010),
         );
 
-        assert!(h.undo(&mut g));
+        assert!(h.undo(&mut g).moved());
         assert_eq!(
             g.param(exposure::ID, exposure::EXPOSURE),
             Some(1.0),
@@ -586,7 +770,7 @@ mod tests {
         // Every step still present is reachable, and the walk stops at the
         // floor rather than running off the end.
         let mut steps = 0;
-        while h.undo(&mut g) {
+        while h.undo(&mut g).moved() {
             steps += 1;
         }
         assert_eq!(steps, DEPTH - 1);
@@ -627,7 +811,7 @@ mod tests {
             width: 0.25,
             height: 0.25,
         });
-        assert!(h.undo(&mut g));
+        assert!(h.undo(&mut g).moved());
         assert!(g.framing().is_zoomed(), "the undo threw away the viewport");
     }
 
diff --git a/core/dr-pipeline/src/lib.rs b/core/dr-pipeline/src/lib.rs
index 431fc3e..eef87d5 100644
--- a/core/dr-pipeline/src/lib.rs
+++ b/core/dr-pipeline/src/lib.rs
@@ -54,7 +54,7 @@ pub use detail::{
 };
 pub use framing::{CropRect, Framing};
 pub use graph::{EditGraph, OpCapability, ParamCapability};
-pub use history::{Edit, History};
+pub use history::{Edit, History, Step};
 pub use lens::{compose_warps, ComposedWarp, Warp};
 pub use operation::{
     compose, compose_with_framing, Affects, ComposedShader, Helper, Invalidation, Operation,
diff --git a/core/dr-pipeline/tests/spots.rs b/core/dr-pipeline/tests/spots.rs
index 5bc61c8..ec6b392 100644
--- a/core/dr-pipeline/tests/spots.rs
+++ b/core/dr-pipeline/tests/spots.rs
@@ -259,10 +259,10 @@ fn undo_takes_a_repair_back() {
     assert!(history.record(&graph, Edit::Discrete));
     assert_eq!(graph.spots().len(), 1);
 
-    assert!(history.undo(&mut graph));
+    assert!(history.undo(&mut graph).moved());
     assert_eq!(graph.spots().len(), 0, "the repair is still on the frame");
 
-    assert!(history.redo(&mut graph));
+    assert!(history.redo(&mut graph).moved());
     assert_eq!(graph.spots().len(), 1, "and redo could not put it back");
 }
 
@@ -287,7 +287,7 @@ fn undo_steps_back_through_a_moved_source() {
         .set_offset((0.2, 0.1));
     history.record(&graph, Edit::Discrete);
 
-    assert!(history.undo(&mut graph));
+    assert!(history.undo(&mut graph).moved());
     assert_eq!(
         graph.spots().get(&id).map(|s| s.offset),
         Some((0.08, 0.0)),
diff --git a/docs/traceability.md b/docs/traceability.md
index 2b61bf5..36a0b10 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 | 228 |
-| TRACES tags found | 629 |
+| TRACES tags found | 631 |
 | Requirements defined | 177 |
 | Requirements covered | 91 |
 | **Coverage** | **51.4%** (91/177) |
@@ -52,21 +52,21 @@ _None._
 | 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:134`](../core/dr-pipeline/src/sidecar.rs#L134), [`ui/dr-ui/src/library.rs:203`](../ui/dr-ui/src/library.rs#L203), [`ui/dr-ui/src/library.rs:364`](../ui/dr-ui/src/library.rs#L364) |
 | FR-DEV-2 | [`core/dr-pipeline/src/operation.rs:352`](../core/dr-pipeline/src/operation.rs#L352) |
-| FR-DEV-3 | [`core/dr-gpu/src/adjust.rs:2167`](../core/dr-gpu/src/adjust.rs#L2167), [`core/dr-gpu/src/adjust.rs:651`](../core/dr-gpu/src/adjust.rs#L651), [`core/dr-gpu/src/adjust.rs:770`](../core/dr-gpu/src/adjust.rs#L770), [`core/dr-gpu/src/adjust.rs:84`](../core/dr-gpu/src/adjust.rs#L84), [`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:158`](../core/dr-pipeline/src/graph.rs#L158), [`core/dr-pipeline/src/graph.rs:547`](../core/dr-pipeline/src/graph.rs#L547), [`core/dr-pipeline/src/mask.rs:120`](../core/dr-pipeline/src/mask.rs#L120), [`core/dr-pipeline/src/operation.rs:299`](../core/dr-pipeline/src/operation.rs#L299), [`core/dr-pipeline/src/operation.rs:473`](../core/dr-pipeline/src/operation.rs#L473), [`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:1431`](../core/dr-pipeline/src/sidecar.rs#L1431), [`core/dr-pipeline/src/sidecar.rs:1491`](../core/dr-pipeline/src/sidecar.rs#L1491), [`core/dr-pipeline/src/sidecar.rs:155`](../core/dr-pipeline/src/sidecar.rs#L155), [`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:270`](../ui/dr-ui/src/develop.rs#L270), [`ui/dr-ui/src/develop.rs:2762`](../ui/dr-ui/src/develop.rs#L2762), [`ui/dr-ui/src/develop.rs:3214`](../ui/dr-ui/src/develop.rs#L3214), [`ui/dr-ui/src/develop.rs:3268`](../ui/dr-ui/src/develop.rs#L3268), [`ui/dr-ui/src/develop.rs:3312`](../ui/dr-ui/src/develop.rs#L3312), [`ui/dr-ui/src/develop.rs:3362`](../ui/dr-ui/src/develop.rs#L3362), [`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:1275`](../ui/dr-ui/src/lib.rs#L1275), [`ui/dr-ui/src/lib.rs:1934`](../ui/dr-ui/src/lib.rs#L1934), [`ui/dr-ui/src/lib.rs:290`](../ui/dr-ui/src/lib.rs#L290), [`ui/dr-ui/src/library.rs:411`](../ui/dr-ui/src/library.rs#L411), [`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:1915`](../ui/dr-ui/ui/app.slint#L1915), [`ui/dr-ui/ui/app.slint:913`](../ui/dr-ui/ui/app.slint#L913) |
+| FR-DEV-3 | [`core/dr-gpu/src/adjust.rs:2167`](../core/dr-gpu/src/adjust.rs#L2167), [`core/dr-gpu/src/adjust.rs:651`](../core/dr-gpu/src/adjust.rs#L651), [`core/dr-gpu/src/adjust.rs:770`](../core/dr-gpu/src/adjust.rs#L770), [`core/dr-gpu/src/adjust.rs:84`](../core/dr-gpu/src/adjust.rs#L84), [`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:158`](../core/dr-pipeline/src/graph.rs#L158), [`core/dr-pipeline/src/graph.rs:547`](../core/dr-pipeline/src/graph.rs#L547), [`core/dr-pipeline/src/mask.rs:120`](../core/dr-pipeline/src/mask.rs#L120), [`core/dr-pipeline/src/operation.rs:299`](../core/dr-pipeline/src/operation.rs#L299), [`core/dr-pipeline/src/operation.rs:473`](../core/dr-pipeline/src/operation.rs#L473), [`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:1431`](../core/dr-pipeline/src/sidecar.rs#L1431), [`core/dr-pipeline/src/sidecar.rs:1491`](../core/dr-pipeline/src/sidecar.rs#L1491), [`core/dr-pipeline/src/sidecar.rs:155`](../core/dr-pipeline/src/sidecar.rs#L155), [`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:270`](../ui/dr-ui/src/develop.rs#L270), [`ui/dr-ui/src/develop.rs:2762`](../ui/dr-ui/src/develop.rs#L2762), [`ui/dr-ui/src/develop.rs:3237`](../ui/dr-ui/src/develop.rs#L3237), [`ui/dr-ui/src/develop.rs:3291`](../ui/dr-ui/src/develop.rs#L3291), [`ui/dr-ui/src/develop.rs:3335`](../ui/dr-ui/src/develop.rs#L3335), [`ui/dr-ui/src/develop.rs:3385`](../ui/dr-ui/src/develop.rs#L3385), [`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:1275`](../ui/dr-ui/src/lib.rs#L1275), [`ui/dr-ui/src/lib.rs:1934`](../ui/dr-ui/src/lib.rs#L1934), [`ui/dr-ui/src/lib.rs:290`](../ui/dr-ui/src/lib.rs#L290), [`ui/dr-ui/src/library.rs:411`](../ui/dr-ui/src/library.rs#L411), [`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:1915`](../ui/dr-ui/ui/app.slint#L1915), [`ui/dr-ui/ui/app.slint:913`](../ui/dr-ui/ui/app.slint#L913) |
 | 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:229`](../core/dr-pipeline/src/graph.rs#L229), [`core/dr-pipeline/src/graph.rs:22`](../core/dr-pipeline/src/graph.rs#L22), [`core/dr-pipeline/src/graph.rs:44`](../core/dr-pipeline/src/graph.rs#L44), [`core/dr-pipeline/src/graph.rs:57`](../core/dr-pipeline/src/graph.rs#L57), [`core/dr-pipeline/src/mask.rs:954`](../core/dr-pipeline/src/mask.rs#L954), [`core/dr-pipeline/src/operation.rs:328`](../core/dr-pipeline/src/operation.rs#L328), [`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:579`](../ui/dr-ui/src/lib.rs#L579) |
 | 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:57`](../core/dr-pipeline/src/graph.rs#L57), [`core/dr-pipeline/src/operation.rs:328`](../core/dr-pipeline/src/operation.rs#L328) |
-| 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:229`](../core/dr-pipeline/src/graph.rs#L229), [`core/dr-pipeline/src/graph.rs:44`](../core/dr-pipeline/src/graph.rs#L44), [`core/dr-pipeline/src/mask.rs:954`](../core/dr-pipeline/src/mask.rs#L954), [`ui/dr-ui/src/develop.rs:3941`](../ui/dr-ui/src/develop.rs#L3941) |
+| 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:229`](../core/dr-pipeline/src/graph.rs#L229), [`core/dr-pipeline/src/graph.rs:44`](../core/dr-pipeline/src/graph.rs#L44), [`core/dr-pipeline/src/mask.rs:954`](../core/dr-pipeline/src/mask.rs#L954), [`ui/dr-ui/src/develop.rs:3964`](../ui/dr-ui/src/develop.rs#L3964) |
 | FR-DEV-3d | [`core/dr-gpu/src/adjust.rs:1041`](../core/dr-gpu/src/adjust.rs#L1041), [`core/dr-gpu/src/adjust.rs:104`](../core/dr-gpu/src/adjust.rs#L104), [`core/dr-gpu/src/adjust.rs:770`](../core/dr-gpu/src/adjust.rs#L770), [`core/dr-gpu/src/adjust.rs:84`](../core/dr-gpu/src/adjust.rs#L84), [`core/dr-gpu/src/adjust.rs:986`](../core/dr-gpu/src/adjust.rs#L986), [`core/dr-gpu/tests/capture_sharpen.rs:433`](../core/dr-gpu/tests/capture_sharpen.rs#L433), [`core/dr-gpu/tests/detail_stage.rs:241`](../core/dr-gpu/tests/detail_stage.rs#L241), [`core/dr-gpu/tests/local_contrast.rs:475`](../core/dr-gpu/tests/local_contrast.rs#L475), [`core/dr-gpu/tests/noise_reduction.rs:555`](../core/dr-gpu/tests/noise_reduction.rs#L555), [`core/dr-pipeline/src/framing.rs:188`](../core/dr-pipeline/src/framing.rs#L188), [`core/dr-pipeline/src/graph.rs:576`](../core/dr-pipeline/src/graph.rs#L576), [`core/dr-pipeline/src/operation.rs:31`](../core/dr-pipeline/src/operation.rs#L31), [`core/dr-pipeline/src/operation.rs:352`](../core/dr-pipeline/src/operation.rs#L352), [`core/dr-pipeline/src/operation.rs:52`](../core/dr-pipeline/src/operation.rs#L52), [`core/dr-pipeline/src/operation.rs:70`](../core/dr-pipeline/src/operation.rs#L70) |
 | 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:967`](../core/dr-gpu/src/adjust.rs#L967), [`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:1410`](../core/dr-pipeline/src/operation.rs#L1410), [`core/dr-pipeline/src/operation.rs:1491`](../core/dr-pipeline/src/operation.rs#L1491), [`core/dr-pipeline/src/operation.rs:1516`](../core/dr-pipeline/src/operation.rs#L1516), [`core/dr-pipeline/src/operation.rs:1531`](../core/dr-pipeline/src/operation.rs#L1531), [`core/dr-pipeline/src/operation.rs:1555`](../core/dr-pipeline/src/operation.rs#L1555), [`core/dr-pipeline/src/operation.rs:279`](../core/dr-pipeline/src/operation.rs#L279), [`core/dr-pipeline/src/operation.rs:403`](../core/dr-pipeline/src/operation.rs#L403), [`core/dr-pipeline/src/operation.rs:413`](../core/dr-pipeline/src/operation.rs#L413), [`core/dr-pipeline/src/operation.rs:549`](../core/dr-pipeline/src/operation.rs#L549) |
 | FR-DEV-3f | [`core/dr-film/src/bake.rs:271`](../core/dr-film/src/bake.rs#L271), [`core/dr-film/src/bake.rs:62`](../core/dr-film/src/bake.rs#L62), [`core/dr-film/src/grain.rs:1`](../core/dr-film/src/grain.rs#L1), [`core/dr-film/src/grain.rs:88`](../core/dr-film/src/grain.rs#L88), [`core/dr-film/src/lib.rs:158`](../core/dr-film/src/lib.rs#L158), [`core/dr-film/src/lib.rs:1`](../core/dr-film/src/lib.rs#L1), [`core/dr-film/src/profile.rs:100`](../core/dr-film/src/profile.rs#L100), [`core/dr-film/src/profile.rs:142`](../core/dr-film/src/profile.rs#L142), [`core/dr-film/src/profile.rs:182`](../core/dr-film/src/profile.rs#L182), [`core/dr-film/src/profile.rs:259`](../core/dr-film/src/profile.rs#L259), [`core/dr-film/src/profile.rs:502`](../core/dr-film/src/profile.rs#L502), [`core/dr-film/src/profile.rs:73`](../core/dr-film/src/profile.rs#L73), [`core/dr-gpu/src/adjust.rs:139`](../core/dr-gpu/src/adjust.rs#L139), [`core/dr-gpu/src/adjust.rs:196`](../core/dr-gpu/src/adjust.rs#L196), [`core/dr-gpu/src/adjust.rs:357`](../core/dr-gpu/src/adjust.rs#L357), [`core/dr-gpu/src/adjust.rs:483`](../core/dr-gpu/src/adjust.rs#L483), [`core/dr-gpu/src/adjust.rs:77`](../core/dr-gpu/src/adjust.rs#L77), [`core/dr-gpu/tests/film_sim.rs:191`](../core/dr-gpu/tests/film_sim.rs#L191), [`core/dr-gpu/tests/film_sim.rs:1`](../core/dr-gpu/tests/film_sim.rs#L1), [`core/dr-pipeline/src/graph.rs:100`](../core/dr-pipeline/src/graph.rs#L100), [`core/dr-pipeline/src/graph.rs:114`](../core/dr-pipeline/src/graph.rs#L114), [`core/dr-pipeline/src/graph.rs:303`](../core/dr-pipeline/src/graph.rs#L303), [`core/dr-pipeline/src/operation.rs:1014`](../core/dr-pipeline/src/operation.rs#L1014), [`core/dr-pipeline/src/operation.rs:1043`](../core/dr-pipeline/src/operation.rs#L1043), [`core/dr-pipeline/src/operation.rs:1410`](../core/dr-pipeline/src/operation.rs#L1410), [`core/dr-pipeline/src/operation.rs:265`](../core/dr-pipeline/src/operation.rs#L265), [`core/dr-pipeline/src/operation.rs:279`](../core/dr-pipeline/src/operation.rs#L279), [`core/dr-pipeline/src/ops/film_sim.rs:102`](../core/dr-pipeline/src/ops/film_sim.rs#L102), [`core/dr-pipeline/src/ops/film_sim.rs:126`](../core/dr-pipeline/src/ops/film_sim.rs#L126), [`core/dr-pipeline/src/ops/film_sim.rs:1`](../core/dr-pipeline/src/ops/film_sim.rs#L1), [`core/dr-pipeline/src/ops/film_sim.rs:300`](../core/dr-pipeline/src/ops/film_sim.rs#L300), [`core/dr-pipeline/src/ops/film_sim.rs:68`](../core/dr-pipeline/src/ops/film_sim.rs#L68), [`core/dr-pipeline/src/sidecar.rs:110`](../core/dr-pipeline/src/sidecar.rs#L110), [`core/dr-pipeline/src/sidecar.rs:166`](../core/dr-pipeline/src/sidecar.rs#L166), [`core/dr-pipeline/src/sidecar.rs:1752`](../core/dr-pipeline/src/sidecar.rs#L1752), [`core/dr-pipeline/src/sidecar.rs:1828`](../core/dr-pipeline/src/sidecar.rs#L1828), [`core/dr-pipeline/src/sidecar.rs:434`](../core/dr-pipeline/src/sidecar.rs#L434), [`core/dr-pipeline/src/sidecar.rs:560`](../core/dr-pipeline/src/sidecar.rs#L560), [`core/dr-pipeline/src/sidecar.rs:683`](../core/dr-pipeline/src/sidecar.rs#L683), [`core/dr-pipeline/src/state.rs:100`](../core/dr-pipeline/src/state.rs#L100), [`core/dr-pipeline/src/state.rs:55`](../core/dr-pipeline/src/state.rs#L55), [`core/dr-pipeline/src/state.rs:95`](../core/dr-pipeline/src/state.rs#L95), [`ui/dr-ui/src/develop.rs:2340`](../ui/dr-ui/src/develop.rs#L2340), [`ui/dr-ui/src/develop.rs:2357`](../ui/dr-ui/src/develop.rs#L2357), [`ui/dr-ui/src/develop.rs:2388`](../ui/dr-ui/src/develop.rs#L2388), [`ui/dr-ui/src/develop.rs:2485`](../ui/dr-ui/src/develop.rs#L2485), [`ui/dr-ui/src/develop.rs:2798`](../ui/dr-ui/src/develop.rs#L2798), [`ui/dr-ui/src/develop.rs:2813`](../ui/dr-ui/src/develop.rs#L2813), [`ui/dr-ui/src/lib.rs:1908`](../ui/dr-ui/src/lib.rs#L1908), [`ui/dr-ui/src/lib.rs:512`](../ui/dr-ui/src/lib.rs#L512), [`ui/dr-ui/src/lib.rs:570`](../ui/dr-ui/src/lib.rs#L570), [`ui/dr-ui/src/library.rs:402`](../ui/dr-ui/src/library.rs#L402), [`ui/dr-ui/src/library.rs:651`](../ui/dr-ui/src/library.rs#L651), [`ui/dr-ui/src/presets.rs:275`](../ui/dr-ui/src/presets.rs#L275), [`ui/dr-ui/ui/adjust.slint:879`](../ui/dr-ui/ui/adjust.slint#L879), [`ui/dr-ui/ui/adjust.slint:949`](../ui/dr-ui/ui/adjust.slint#L949), [`ui/dr-ui/ui/app.slint:2370`](../ui/dr-ui/ui/app.slint#L2370), [`ui/dr-ui/ui/app.slint:707`](../ui/dr-ui/ui/app.slint#L707) |
 | 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:770`](../core/dr-gpu/src/adjust.rs#L770), [`core/dr-gpu/src/lib.rs:217`](../core/dr-gpu/src/lib.rs#L217) |
-| FR-DEV-5 | [`core/dr-pipeline/src/graph.rs:324`](../core/dr-pipeline/src/graph.rs#L324), [`core/dr-pipeline/src/graph.rs:361`](../core/dr-pipeline/src/graph.rs#L361), [`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), [`core/dr-pipeline/src/state.rs:1`](../core/dr-pipeline/src/state.rs#L1), [`core/dr-pipeline/src/state.rs:70`](../core/dr-pipeline/src/state.rs#L70), [`ui/dr-ui/src/develop.rs:2837`](../ui/dr-ui/src/develop.rs#L2837), [`ui/dr-ui/src/develop.rs:2847`](../ui/dr-ui/src/develop.rs#L2847), [`ui/dr-ui/src/develop.rs:488`](../ui/dr-ui/src/develop.rs#L488), [`ui/dr-ui/src/lib.rs:1267`](../ui/dr-ui/src/lib.rs#L1267) |
+| FR-DEV-5 | [`core/dr-pipeline/src/graph.rs:324`](../core/dr-pipeline/src/graph.rs#L324), [`core/dr-pipeline/src/graph.rs:361`](../core/dr-pipeline/src/graph.rs#L361), [`core/dr-pipeline/src/history.rs:141`](../core/dr-pipeline/src/history.rs#L141), [`core/dr-pipeline/src/history.rs:177`](../core/dr-pipeline/src/history.rs#L177), [`core/dr-pipeline/src/history.rs:1`](../core/dr-pipeline/src/history.rs#L1), [`core/dr-pipeline/src/history.rs:72`](../core/dr-pipeline/src/history.rs#L72), [`core/dr-pipeline/src/history.rs:88`](../core/dr-pipeline/src/history.rs#L88), [`core/dr-pipeline/src/history.rs:96`](../core/dr-pipeline/src/history.rs#L96), [`core/dr-pipeline/src/state.rs:1`](../core/dr-pipeline/src/state.rs#L1), [`core/dr-pipeline/src/state.rs:70`](../core/dr-pipeline/src/state.rs#L70), [`ui/dr-ui/src/develop.rs:2813`](../ui/dr-ui/src/develop.rs#L2813), [`ui/dr-ui/src/develop.rs:2843`](../ui/dr-ui/src/develop.rs#L2843), [`ui/dr-ui/src/develop.rs:2856`](../ui/dr-ui/src/develop.rs#L2856), [`ui/dr-ui/src/develop.rs:2868`](../ui/dr-ui/src/develop.rs#L2868), [`ui/dr-ui/src/develop.rs:488`](../ui/dr-ui/src/develop.rs#L488), [`ui/dr-ui/src/lib.rs:1267`](../ui/dr-ui/src/lib.rs#L1267) |
 | 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:2756`](../ui/dr-ui/src/develop.rs#L2756), [`ui/dr-ui/src/develop.rs:2777`](../ui/dr-ui/src/develop.rs#L2777), [`ui/dr-ui/src/lib.rs:1239`](../ui/dr-ui/src/lib.rs#L1239), [`ui/dr-ui/src/library.rs:1545`](../ui/dr-ui/src/library.rs#L1545), [`ui/dr-ui/src/library.rs:364`](../ui/dr-ui/src/library.rs#L364), [`ui/dr-ui/src/library.rs:392`](../ui/dr-ui/src/library.rs#L392), [`ui/dr-ui/src/library_ui.rs:2576`](../ui/dr-ui/src/library_ui.rs#L2576), [`ui/dr-ui/src/library_ui.rs:2976`](../ui/dr-ui/src/library_ui.rs#L2976), [`ui/dr-ui/src/library_ui.rs:466`](../ui/dr-ui/src/library_ui.rs#L466), [`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:1305`](../ui/dr-ui/ui/library.slint#L1305), [`ui/dr-ui/ui/library.slint:831`](../ui/dr-ui/ui/library.slint#L831), [`ui/dr-ui/ui/library.slint:912`](../ui/dr-ui/ui/library.slint#L912), [`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:299`](../core/dr-pipeline/src/operation.rs#L299) |
-| FR-DSP-1 | [`core/dr-gpu/src/adjust.rs:2090`](../core/dr-gpu/src/adjust.rs#L2090), [`core/dr-gpu/src/adjust.rs:2167`](../core/dr-gpu/src/adjust.rs#L2167), [`core/dr-gpu/src/adjust.rs:2252`](../core/dr-gpu/src/adjust.rs#L2252), [`core/dr-gpu/src/adjust.rs:54`](../core/dr-gpu/src/adjust.rs#L54), [`core/dr-gpu/src/adjust.rs:770`](../core/dr-gpu/src/adjust.rs#L770), [`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:517`](../core/dr-pipeline/src/graph.rs#L517), [`core/dr-pipeline/src/graph.rs:547`](../core/dr-pipeline/src/graph.rs#L547), [`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:3003`](../ui/dr-ui/src/develop.rs#L3003), [`ui/dr-ui/src/develop.rs:3486`](../ui/dr-ui/src/develop.rs#L3486), [`ui/dr-ui/src/develop.rs:3520`](../ui/dr-ui/src/develop.rs#L3520), [`ui/dr-ui/src/lib.rs:59`](../ui/dr-ui/src/lib.rs#L59), [`ui/dr-ui/src/lib.rs:720`](../ui/dr-ui/src/lib.rs#L720) |
+| FR-DSP-1 | [`core/dr-gpu/src/adjust.rs:2090`](../core/dr-gpu/src/adjust.rs#L2090), [`core/dr-gpu/src/adjust.rs:2167`](../core/dr-gpu/src/adjust.rs#L2167), [`core/dr-gpu/src/adjust.rs:2252`](../core/dr-gpu/src/adjust.rs#L2252), [`core/dr-gpu/src/adjust.rs:54`](../core/dr-gpu/src/adjust.rs#L54), [`core/dr-gpu/src/adjust.rs:770`](../core/dr-gpu/src/adjust.rs#L770), [`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:517`](../core/dr-pipeline/src/graph.rs#L517), [`core/dr-pipeline/src/graph.rs:547`](../core/dr-pipeline/src/graph.rs#L547), [`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:3026`](../ui/dr-ui/src/develop.rs#L3026), [`ui/dr-ui/src/develop.rs:3509`](../ui/dr-ui/src/develop.rs#L3509), [`ui/dr-ui/src/develop.rs:3543`](../ui/dr-ui/src/develop.rs#L3543), [`ui/dr-ui/src/lib.rs:59`](../ui/dr-ui/src/lib.rs#L59), [`ui/dr-ui/src/lib.rs:720`](../ui/dr-ui/src/lib.rs#L720) |
 | FR-DSP-6 | [`core/dr-pipeline/src/operation.rs:446`](../core/dr-pipeline/src/operation.rs#L446), [`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:4588`](../ui/dr-ui/src/develop.rs#L4588), [`ui/dr-ui/src/develop.rs:4620`](../ui/dr-ui/src/develop.rs#L4620), [`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:1326`](../ui/dr-ui/src/lib.rs#L1326), [`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:4611`](../ui/dr-ui/src/develop.rs#L4611), [`ui/dr-ui/src/develop.rs:4643`](../ui/dr-ui/src/develop.rs#L4643), [`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:1326`](../ui/dr-ui/src/lib.rs#L1326), [`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:2400`](../core/dr-gpu/src/adjust.rs#L2400), [`core/dr-pipeline/src/graph.rs:507`](../core/dr-pipeline/src/graph.rs#L507), [`core/dr-pipeline/src/graph.rs:560`](../core/dr-pipeline/src/graph.rs#L560), [`core/dr-pipeline/src/operation.rs:446`](../core/dr-pipeline/src/operation.rs#L446), [`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) |
@@ -119,7 +119,7 @@ _None._
 | NFR-R5 | [`core/dr-catalog/src/collections.rs:1`](../core/dr-catalog/src/collections.rs#L1), [`core/dr-catalog/src/error.rs:1`](../core/dr-catalog/src/error.rs#L1), [`core/dr-catalog/src/keywords.rs:1`](../core/dr-catalog/src/keywords.rs#L1), [`core/dr-catalog/src/schema.rs:1`](../core/dr-catalog/src/schema.rs#L1) |
 | NFR-R7 | [`core/dr-gpu/src/error.rs:1`](../core/dr-gpu/src/error.rs#L1) |
 | NFR-R8 | [`core/dr-gpu/src/error.rs:1`](../core/dr-gpu/src/error.rs#L1) |
-| NFR-RES-1 | [`core/dr-pipeline/src/history.rs:55`](../core/dr-pipeline/src/history.rs#L55), [`ui/dr-ui/src/lib.rs:59`](../ui/dr-ui/src/lib.rs#L59) |
+| NFR-RES-1 | [`core/dr-pipeline/src/history.rs:72`](../core/dr-pipeline/src/history.rs#L72), [`ui/dr-ui/src/lib.rs:59`](../ui/dr-ui/src/lib.rs#L59) |
 | NFR-RES-4 | [`core/dr-catalog/src/cache.rs:1`](../core/dr-catalog/src/cache.rs#L1), [`core/dr-catalog/src/schema.rs:394`](../core/dr-catalog/src/schema.rs#L394), [`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), [`core/dr-thumbs/src/lib.rs:376`](../core/dr-thumbs/src/lib.rs#L376), [`ui/dr-ui/src/library.rs:2598`](../ui/dr-ui/src/library.rs#L2598) |
 | NFR-SEC-1 | [`core/dr-decode/src/error.rs:1`](../core/dr-decode/src/error.rs#L1) |
 | R1 | [`tools/traceability/src/lib.rs:495`](../tools/traceability/src/lib.rs#L495), [`tools/traceability/src/lib.rs:499`](../tools/traceability/src/lib.rs#L499) |
diff --git a/ui/dr-ui/src/develop.rs b/ui/dr-ui/src/develop.rs
index 725a760..a4ba8ba 100644
--- a/ui/dr-ui/src/develop.rs
+++ b/ui/dr-ui/src/develop.rs
@@ -3163,7 +3163,7 @@ impl DevelopSession {
         self.history.reset(&self.graph);
     }
 
-    /// TRACES: FR-DEV-3f
+    /// TRACES: FR-DEV-3f | FR-DEV-5
     /// Pay what a restored edit owes the picture.
     ///
     /// `dr-pipeline` restores a stock's *name* and clears its tables, because
@@ -3176,6 +3176,12 @@ impl DevelopSession {
     /// on holding textures that nothing will sample. That is the two halves
     /// disagreeing, which is the failure `set_film` exists to make
     /// impossible — and it is silent in this direction, which is worse.
+    ///
+    /// Baked unconditionally rather than only when the stock changed: the
+    /// tables come from the film node's own exposure sliders as well as from
+    /// the stock, and restoring an edit replaces those sliders too. A bake is
+    /// milliseconds and this happens on a keypress, so the cheap correct rule
+    /// beats the clever one.
     fn pay_film_debt(&mut self, rebake: &dr_pipeline::FilmRebake) {
         match rebake.wanted() {
             Some(film) => {
@@ -3187,6 +3193,19 @@ impl DevelopSession {
         }
     }
 
+    /// TRACES: FR-DEV-5
+    /// [`Self::pay_film_debt`] for a history step, when the step went
+    /// anywhere.
+    ///
+    /// The guard is the whole difference between the two: a step that found
+    /// nowhere to go left the graph alone, and clearing the film because
+    /// undo hit the floor would take the picture's stock off it.
+    fn settle(&mut self, step: &dr_pipeline::Step) {
+        if let dr_pipeline::Step::Took(rebake) = step {
+            self.pay_film_debt(rebake);
+        }
+    }
+
     /// TRACES: FR-DEV-5
     /// Step the edit back one, returning whether anything moved.
     ///
@@ -3194,13 +3213,17 @@ impl DevelopSession {
     /// reason a paste must: this moves values the controls are showing and
     /// nothing here pushes them.
     pub fn undo(&mut self) -> bool {
-        self.history.undo(&mut self.graph)
+        let step = self.history.undo(&mut self.graph);
+        self.settle(&step);
+        step.moved()
     }
 
     /// TRACES: FR-DEV-5
     /// Step the edit forward one, returning whether anything moved.
     pub fn redo(&mut self) -> bool {
-        self.history.redo(&mut self.graph)
+        let step = self.history.redo(&mut self.graph);
+        self.settle(&step);
+        step.moved()
     }
 
     pub fn can_undo(&self) -> bool {