diff --git a/docs/outstanding.md b/docs/outstanding.md
index 5959231..465bf31 100644
--- a/docs/outstanding.md
+++ b/docs/outstanding.md
@@ -260,9 +260,22 @@ on one control — the parameter slider in `adjust.slint` — and nothing is set
 all. Everything else in eighteen Slint files is unnamed to AT-SPI and TalkBack. The requirement's own
 caveat, that Slint's Android accessibility needs verifying, is spike S13, which has not run.
 
-**NFR-A11Y-3 — Colour-independent status.** No compliance work found. This is cheap to satisfy while
-a control is being written and expensive to retrofit across forty of them, which is an argument for
-doing it as part of the NFR-A11Y-2 pass rather than after it.
+**NFR-A11Y-3 — Colour-independent status.** Built where a control exists, and now tagged: the
+clipping readout pairs a marker that appears or disappears with a figure in words, the rating strip
+is a solid star against an outline in an achromatic palette, the pick/reject mark is a tick against
+a cross, and the focus-peaking colour chips say "Red" and "Cyan" rather than showing swatches. Each
+of those already carried the reasoning in a comment naming this requirement and simply had no
+`TRACES` line.
+
+Two caveats, because the tag now says more than the evidence does. **Only the clipping clause has a
+test** — `a_clipping_figure_distinguishes_none_from_nearly_none`, which pins `<0.1%` apart from `0%`
+so the figure cannot contradict the lit marker beside it. The three Slint components are
+inspected-and-argued, not asserted, and nothing would fail if a future edit made a star differ only
+in tint. **And the requirement's first named example has no interface at all**: catalog colour
+labels are a nullable `label INTEGER` column on the versions table and are set and shown nowhere, so
+the clause about them is untestable rather than satisfied. That clause closes when the label UI is
+built, not before, and it should be built with a shape from the outset — which is the same argument
+as below, for doing this alongside NFR-A11Y-2 rather than after it.
 
 ---
 
diff --git a/ui/dr-ui/src/histogram.rs b/ui/dr-ui/src/histogram.rs
index efd27ad..59c601e 100644
--- a/ui/dr-ui/src/histogram.rs
+++ b/ui/dr-ui/src/histogram.rs
@@ -353,6 +353,7 @@ fn fraction(clipped: u32, pixels: u32) -> f32 {
     }
 }
 
+/// TRACES: NFR-A11Y-3
 /// How much of the frame is gone, as a figure rather than a colour.
 ///
 /// NFR-A11Y-3 asks that no status be carried by hue alone, and this is the
@@ -364,6 +365,8 @@ fn fraction(clipped: u32, pixels: u32) -> f32 {
 /// Distinguishes "none" from "not none but under a tenth of a percent": those
 /// are different answers, and rounding the second to `0.0%` would tell a
 /// photographer their highlights were safe when the indicator beside it is lit.
+/// `a_clipping_figure_distinguishes_none_from_nearly_none` is the test that
+/// would fail if this became a colour again.
 fn percentage(clipped: u32, pixels: u32) -> String {
     if pixels == 0 || clipped == 0 {
         return "0%".into();
diff --git a/ui/dr-ui/ui/histogram.slint b/ui/dr-ui/ui/histogram.slint
index ee92358..b5f80b9 100644
--- a/ui/dr-ui/ui/histogram.slint
+++ b/ui/dr-ui/ui/histogram.slint
@@ -134,6 +134,7 @@ component Trace inherits Rectangle {
     }
 }
 
+// TRACES: NFR-A11Y-3
 // A clipping readout: a lit marker and a figure.
 //
 // **Two affordances for one fact, and NFR-A11Y-3 is why.** No status in this
diff --git a/ui/dr-ui/ui/library.slint b/ui/dr-ui/ui/library.slint
index 57df578..1aca122 100644
--- a/ui/dr-ui/ui/library.slint
+++ b/ui/dr-ui/ui/library.slint
@@ -649,6 +649,7 @@ export component PhotoRoll inherits Rectangle {
     }
 }
 
+// TRACES: NFR-A11Y-3
 // A row of five stars, readable at a glance and clickable to set a rating.
 //
 // **Filled versus empty carries the meaning, not colour.** NFR-A11Y-3 forbids
@@ -796,6 +797,7 @@ export component StarStrip inherits Rectangle {
     }
 }
 
+// TRACES: NFR-A11Y-3
 // The pick/reject mark.
 //
 // A shape rather than a colour, for the same NFR-A11Y-3 reason as the stars:
diff --git a/ui/dr-ui/ui/peaking.slint b/ui/dr-ui/ui/peaking.slint
index e9b7e51..59d45bb 100644
--- a/ui/dr-ui/ui/peaking.slint
+++ b/ui/dr-ui/ui/peaking.slint
@@ -1,4 +1,4 @@
-// TRACES: FR-CULL-3
+// TRACES: FR-CULL-3 | NFR-A11Y-3
 // The focus-peaking switch, and the two choices it exposes.
 //
 // **An instrument, not an operation**, exactly as the histogram above it is: