Merge PR #1490

# Conflicts:
#	docs/parity-checklist.md
#	docs/ui-parity.md

docs/library-shortcuts.md

@@ -13,6 +13,8 @@ Select photos in Photo Grid or Square Grid, then use:
 | `P` | Flag as a pick |
 | `X` | Flag as rejected |
 | `U` | Clear the flag |
+| `` ` `` (backtick) | Cycle the flag: unflagged → pick → reject → unflagged |
+| `Cmd`/`Ctrl` + `↑` / `↓` | Raise / lower flag status (reject < unflagged < pick; stops at either end) |
 | `Shift` + `0`–`9`, `P`, `X` or `U` | Apply the action and select the next photo |
 
 Enter opens the active photo without changing the selection. Text fields, dialogs and open popups keep the key; a custom Enter binding takes precedence. Enter has no additional action in Detail.
@@ -37,6 +39,8 @@ step. AutoWrite uses the normal rating metadata path. In Detail, including Maski
 remapping and disabling the default brush bindings take precedence over their grid bracket actions.
 The separate Decrease Rating / Increase Rating commands can also be assigned in Help → Keyboard Shortcuts.
 
+Flag cycling and raise/lower use each photo's own flag, so a mixed selection steps together without being made uniform. Adobe's shortcut list names the backtick "Cycle flag settings" but does not state the order; unflagged → pick → reject is LightCraft's choice. The key is the logical grave key, so it follows the keyboard layout (on layouts where it is a dead accent key, assign another key in Help → Keyboard Shortcuts to `photo.cycleFlag`).
+
 Grid actions apply to all selected photos and support Undo / Redo. In Compare and Survey, culling
 actions apply to the active photo. Auto Advance moves forward after an action; holding Shift with
 Auto Advance on still advances only once. The last photo stays selected. Text fields keep their

docs/parity-checklist.md

@@ -778,7 +778,7 @@ From `08-lightroom-classic-extras.md` (Classic-only features) and part 2 of `06-
 | KEYC-SECONDWINDOW | Classic secondary-window keys | P2 | ⬜ | | |
 | KEYC-CATALOG | Classic photo/catalog keys (⇧⌘I, ⌘', ⌘R, F2, ⌫, ⇧⌘E…) | P2 | ✅ | `cmd:library.import`, `cmd:photo.delete`, `cmd:photo.virtualCopy`, `cmd:app.showInFinder`, `cmd:dialog.rename`, `cmd:photo.editInExternal` | ⇧⌘I add, ⌘' virtual copy, ⌘R show in Finder, F2 rename, ⌫ delete, ⇧⌘E external editor |
 | KEYC-COMPARE | Classic grid/compare keys (Z, Home/End, =/−, ⌘⇧D, S…) | P2 | 🟡 | `cmd:view.zoomToggle` | Z toggles zoom; no compare, stacks, thumbnail-size keys |
-| KEYC-RATING | Classic rating/flag keys (1–5, ⇧1–5, 6–9, P, X, U, ⇧X, ⇧U, `[` `]`, \`) | P2 | 🟡 | `cmd:photo.rate`, `cmd:photo.pick`, `cmd:photo.flag` | 0–5 / Shift+0–5 and 6–9 / Shift+6–9; P/X/U, Shift+X/U and grid Shift+P work; tests cover batch/undo, active Compare candidate and text focus. Missing: Shift+P outside grids (Presets), rating `[` / `]`, flag cycle and filter-bar keys |
+| KEYC-RATING | Classic rating/flag keys (1–5, ⇧1–5, 6–9, P, X, U, ⇧X, ⇧U, `[` `]`, \`, ⌘↑ ⌘↓) | P2 | 🟡 | `cmd:photo.rate`, `cmd:photo.pick`, `cmd:photo.flag`, `cmd:photo.cycleFlag`, `cmd:photo.increaseFlag`, `cmd:photo.decreaseFlag` | 0–5 / Shift+0–5 and 6–9 / Shift+6–9; P/X/U, Shift+X/U and grid Shift+P work; ` (backtick) cycles each selected photo's flag unflagged → pick → reject → unflagged and ⌘↑ / ⌘↓ (Ctrl on Windows/Linux) raise / lower it (reject < unflagged < pick, clamped); one undo step, Compare/Survey act on the active photo, Auto Advance follows; tests cover batch/undo, active Compare candidate and text focus. Missing: Shift+P outside grids (Presets), filter-bar keys |
 | KEYC-COLLECTIONS | Classic collection keys (⌘N, B…) | P2 | 🟡 | `cmd:dialog.newAlbum` | ⌘N new album; no quick collection |
 | KEYC-METADATA | Classic keyword/metadata keys (⌘K, ⌘S, ⌘⌥⇧C/V…) | P2 | 🟡 | `cmd:photo.saveMetadataToFile` | ⌘S saves metadata; no keyword sets, metadata copy/paste |
 | KEYC-DEVELOP | Classic develop keys (V, ⌘U, ⇧⌘U, R, Q, K, M, ⇧M, ⇧W, ⇧J, ⇧Q…) | P2 | 🟡 | `cmd:develop.treatment`, `cmd:develop.reset`, `cmd:crop.reset` | V, ⇧⌘R, ⌥⌘R, W, J, Y, ⇧Y, \ match; R/K/M/⇧M differ; no Classic keymap layer |
@@ -812,6 +812,7 @@ Latin stays upright. Advanced Japanese composition remains open. Regression cove
 | 2026-10-14 | minor | LR-IMP-CAMERA-COVERAGE: 21 Sony and Leica Adobe models verified on one CC0 file each; status unchanged (🟡) |
 | 2026-10-13 | minor | KEY-HIDEPINS ⬜ → ✅: Tool Overlay (Auto / Always / Selected / Never, `view.toolOverlay`, ⇧H cycles; H stays Remove) for the Remove tool's spot pins and the mask pins (issue #224); LR-MASK-PINS loses its "no Auto mode" note, LR-REM-SPOT-EDIT notes the modes |
 | 2026-10-13 | minor | LR-EDIT-DETAIL-NR, LR-EDIT-DETAIL-CNR: noise-reduction radii in the original's pixels, so previews at any size and smaller exports look like the full-size render scaled down (issue #960); status unchanged |
+| 2026-10-13 | minor | KEYC-RATING: backtick cycles the flag (`photo.cycleFlag`), ⌘↑ / ⌘↓ raise / lower it (`photo.increaseFlag`, `photo.decreaseFlag`); status unchanged (🟡) |
 | 2026-10-11 | minor | LR-MERGE-HDR: HDR and panorama merges of raws without colour matrices (CR2, NEF, ARW…) write the colour they open with as DNG tags (issue #965); status unchanged |
 | 2026-10-12 | minor | LR-META-XMP: Read Metadata from File no longer auto-writes the sidecar it has just read, which added `lc:settings` and hid another app's later `crs:` edits (#934); status unchanged (✅) |
 | 2026-10-12 | patch | LR-IMP-CAMERA-COVERAGE: CR2 white level from the active area, not the saturated masked rows above it (issue #1272); status unchanged (🟡) |

docs/ui-parity.md

@@ -66,7 +66,7 @@ under the UI command that wraps it (a no-op error); the UI command now wins.
 | Create Version | ⌘⇧S (+ ⇧M) | ⇧M (Windows: Ctrl+⇧S) | — |
 | Select None | ⌘⇧A (+ ⌘D) | ⌘D | — |
 
-**Library culling (KEYC-RATING):** `0–5`, `6–9` and `P/X/U` reach egui on macOS even when displayed in the native menu (adapted from PR #261; issue #283). `Shift+0–9` applies and advances once; `Shift+P` picks and advances in Photo Grid / Square Grid and retains Presets elsewhere. See [library shortcuts](library-shortcuts.md) for the verified Classic mapping and regression coverage. Remaining Classic gaps: rating `[` / `]`, flag cycling and filter-bar keys.
+**Library culling (KEYC-RATING):** `0–5`, `6–9` and `P/X/U` reach egui on macOS even when displayed in the native menu (adapted from PR #261; issue #283). `Shift+0–9` applies and advances once; `Shift+P` picks and advances in Photo Grid / Square Grid and retains Presets elsewhere. See [library shortcuts](library-shortcuts.md) for the verified Classic mapping and regression coverage. `` ` `` cycles the flag (unflagged → pick → reject → unflagged) and ⌘↑ / ⌘↓ raise / lower it; the native menu leaves ⌘↑ / ⌘↓ to egui so Compare/Survey act on the active photo. Remaining Classic gaps: filter-bar keys.
 
 **Still missing / broken:**
 - No command yet: F1 help (verify the rest of the old list: full screen, settings, stacks,
@@ -128,6 +128,7 @@ a real screen reader on any platform yet.
 |---|---|---|
 | 2026-10-12 | minor | Accessibility: crop handles, spots, gradient handles and mask pins operable by keyboard with AccessKit names and values; Tab order test for the right panels; hand-drawn icons and rows named; 55% → 75%; UI remaining 34–58 h → 32–54 h |
 | 2026-10-13 | minor | Shortcuts: Tool Overlay modes for spot and mask pins on ⇧H (H stays Remove; issue #224), listed with the deliberate differences; dropped from the missing list |
+| 2026-10-13 | minor | Library culling: backtick cycles the flag; ⌘↑ / ⌘↓ raise / lower flag status |
 | 2026-10-12 | minor | Accessibility: an AccessKit tree audit test over every view, Develop tool and 13 dialogs; unnamed fields, slider ranges and the Auto Stack slider fixed; 30% → 55%; UI remaining 40–70 h → 34–58 h |
 | 2026-10-11 | minor | Zoom row: Compare and Reference get zoom windows; what remains of LR-VIEW-ZOOM is overlays and soft proofing |
 | 2026-10-10 | major | Created: measured command and shortcut counts, assessment by area, estimates; moved the shortcut conflicts section here from the checklist |