Rebuild the metering overlay from the peeked values so compare restores the look

App.tsx

@@ -189,14 +189,20 @@ export default function App() {
   const METER_HL_CLARITY = 3;
   const clampAdj = (v: number) => Math.max(-10, Math.min(10, v));
   const meteringActive = mode === 'camera' && meterMode === 'highlight';
+  // The overlay is built FROM the adjustments it is laid on, so the preview can
+  // ask for the pre-edit one while the finger holds the compare. Built from the
+  // live values it always was, it kept painting the EDITED look back over the
+  // recipe the peek had swapped in, and neither HIGHLIGHT nor SHADOW (nor EV,
+  // CONTRAST, CLARITY) ever came back.
+  const meteringOverlay = (a: ColorAdjustments): Partial<ColorAdjustments> => ({
+    exposureCompensation: clampAdj((a.exposureCompensation ?? 0) + METER_HL_EV),
+    highlight: clampAdj((a.highlight ?? 0) + METER_HL_HIGHLIGHT),
+    shadow: clampAdj((a.shadow ?? 0) + METER_HL_SHADOW),
+    contrast: clampAdj((a.contrast ?? 0) + METER_HL_CONTRAST),
+    clarity: clampAdj((a.clarity ?? 0) + METER_HL_CLARITY),
+  });
   const meteringAdj: Partial<ColorAdjustments> | undefined = meteringActive
-    ? {
-        exposureCompensation: clampAdj((adjustments.exposureCompensation ?? 0) + METER_HL_EV),
-        highlight: clampAdj((adjustments.highlight ?? 0) + METER_HL_HIGHLIGHT),
-        shadow: clampAdj((adjustments.shadow ?? 0) + METER_HL_SHADOW),
-        contrast: clampAdj((adjustments.contrast ?? 0) + METER_HL_CONTRAST),
-        clarity: clampAdj((adjustments.clarity ?? 0) + METER_HL_CLARITY),
-      }
+    ? meteringOverlay(adjustments)
     : undefined;
   // Same overlay for the camera EXPORT — the EV dip included: EV is software
   // only (no hardware AE bias anywhere), so preview and file must both apply it.
@@ -1448,7 +1454,7 @@ export default function App() {
           onCropRectChange={setCropRect}
           onSessionError={handleCameraSessionError}
           onExposureChange={(ev) => handleUpdateAdjustments({ exposureCompensation: ev })}
-          meteringAdjustments={meteringAdj}
+          meteringAdjustments={meteringActive ? meteringOverlay(shownAdjustments) : undefined}
           imageAdjustTarget={imageAdjustTarget}
           onComparePeek={peekArmed ? handleComparePeek : undefined}
           customWm={customWm}