photocraft/docs/gaps.md

Where PhotoCraft falls short of Photoshop

Last reviewed: 2026-10-10 · Last updated: 2026-10-22 · Change: minor (G11: a recorded Save As imports with its format and file (file.saveAs, file.saveACopy for As a Copy) instead of as a plain Save that wrote over the played file, #7102; folder destinations stop playback until #5430; adjustment clipping stays visible in compact Properties, #5231; G9: Color panel modes, ramp and copy commands, the same in every theme, UI-217-17, #6000; G17: Help › Check for Updates and an opt-out check once per launch, DIST-220-1 partial, #5485; G10: .asl style libraries landed, #1051; G8: area type (TYPE-218-10); G1: smart objects keep Photoshop's Cylinder warp, #4112; G8: paragraph direction buttons in the Paragraph panel and options bar, TYPE-218-2 partial; G1: 32-bit Hue/Saturation and Colorize as Photoshop does them, Photoshop-oracle floor 190/258, #5781; G11: compound layer properties export as separate Photoshop Set events, rename last, #8304; G11: Batch and droplets take the result at the action's Save step, so actions ending in Save As and Close work; G11: .atn steps that switch to another open document import, play and save back, #7103; G14: the Nikon D4 white level follows the sample depth, so 12-bit D4 NEFs no longer open 2.6 stops dark, #5978; G14: a Nikon NEF's Adobe RGB preview is read as Adobe RGB (maker-note ColorSpace 0x001E), #5987; Apply Layer Comp action mapping, #7101; G10: JPEG Options dialog landed, FILE-215-19 partial (no Matte, progressive Scans or size preview); G10: Cineon write; G10: DPX read and write, #1049, Cineon and Amiga IFF read; Classical Object Finder improvement; learned segmentation remains open; G4: named, stateful section locks and visible keyboard focus in Brush Settings; G4: independent Brush Pose tilt-axis overrides, #3825 partial; G4: Transfer Mixer-only controls, #3825 partial; G9: Preferences › File Handling › Save in Background takes effect, #6207, 24 of 169 preferences do nothing; G7: Content-Aware Move previews every selection the command takes, coarse then exact, TOOL-213-4 done, #6680; G4: Pattern Stamp and Background Eraser draw live, TOOL-213-7; G9: Animated Zoom pref read: holding the Zoom tool zooms continuously, #6210, prefs that do nothing 25 of 166; G2: a cancelled 24 MP Gaussian Blur job stops in at most 44 ms, P25 under its 200 ms budget in local runs, baseline not re-run, #6205; G1: generated large-file fixtures, a 4.38 GB PSB opens on Windows through io, FILE-216-2 done, #5107; G9: fill and adjustment layers copy and paste whole, #2344; G1: smart filter masks show on PSD open, Photoshop-oracle floor 188/258; G10: DPX read and write, #1049, Cineon read; G1: CMYK Hue/Saturation and Color Balance keep the black ink; G1: CMYK Posterize on the stored values, psd-tools oracle floor 242/309; G1: CMYK adjustment layers composite on the document's inks, Photoshop-oracle floor 165/258; G1: CMYK Brightness/Contrast on the inks, CMYK Threshold's luma; G1: modern Brightness/Contrast's brightness curve matches Photoshop, Photoshop-oracle floor 151/258; G1: Lab documents composite on their stored L, a, b, Photoshop-oracle floor 152/258; G1: Levels on whole levels at every step, Photoshop-oracle floor 146/258, psd-tools 238/309; G1: 32-bit Brightness/Contrast legacy, Channel Mixer, Photo Filter and Black & White tint unclipped as in Photoshop, Photoshop-oracle floor 149/258; G1: mask feathers blur with their exact variance, psd-tools oracle floor 240/309; G1: Threshold splits on Photoshop's luminosity, psd-tools oracle floor 241/309; G1: pass-through clipping base with an adjustment renders isolated, psd-tools oracle floor 240/309; G1: 16-bit Posterize as Photoshop bins it, psd-tools oracle floor 241/309; G1: Gradient Map driven by the W3C luminosity, Photoshop-oracle floor 147/258; G7: Field Blur's on-canvas pins, #3373; G4: Hue Jitter amount track, #3825 partial; G4: minimum field interaction, #3825 partial; G1: CMYK Invert, Posterize and Threshold on the inks, 16-bit Lab Invert; Photoshop-oracle floor 145/258; G11: .atn import maps 112 events: Select and Mask, Filter Gallery Spatter, Ripple, Crystallize, Pattern Fill layers, mask targeting, Step Backward, nudges in points, Bitmap mode; G5: Free Transform H/V skew fields; G9: toolbar tool shortcut editing; refreshed against main: G2, G5, G7, G9, G10, G13, G14, G17 items that landed; G10: DPX read and write, #1049; G4: checkbox-only Brush Settings rows; G11: Load/Save Actions .atn landed, AUTO-219-2 partial; G5: hold-a-key spring-loaded tools landed, #2672; G1: #2465 fixed; stale missing-tool rows corrected: Color Replacement, Red Eye and Add/Delete Anchor Point are live tools, so only Art History Brush is missing; no estimate changed) · Target: Adobe Photoshop 2026

Every known shortfall against Photoshop 2026 (27.11.0), one entry each, ranked by user impact on the way to beta. This is the work list agents pick from: take the highest-ranked entry that nobody is working on, and when you close part of one, update its evidence and estimate here and the matching parity doc. Numbers come from target-app-parity.md; checklist ids (TOOL-…, FILE-…, UI-…) are rows in scorecard.md; #n are GitHub issues.

No gap blocks alpha: the alpha gate passes. "Blocks beta" marks what stands between alpha and beta.

Hours are Opus 5.5 agent-hours, one agent working sequentially, including tests. Human marks what an agent can't finish alone.

Summary

#	Gap	Kind	Impact	Estimate	Parity doc
G1	PSD fidelity and Photoshop acceptance	file format	blocks beta	150–250 h	file-format-parity
G2	Interactive performance	performance	blocks beta	200–350 h	scorecard
G3	User-reported bug backlog	stability, UI	blocks beta	250–400 h	target-app-parity
G4	Brush feel	UI / painting	high	100–180 h	brush-parity
G5	Transform, handles and modifiers	UI	high	60–110 h	ui-parity
G6	Missing tools (12)	features	high	60–100 h	ui-parity
G7	Workspaces shown as parameter dialogs	features	high	80–140 h	target-app-parity
G8	Type depth	features	high	120–200 h	target-app-parity
G9	Panels, preferences and workspace	UI	medium-high	150–250 h	ui-parity
G10	Missing and partial file formats	file format	medium	120–220 h	file-format-parity
G11	Actions and scripting	ecosystem	medium	120–200 h	target-app-parity
G12	Pen tablets and display hardware	hardware	medium	80–150 h	hardware-parity
G13	Languages: Hindi, Arabic, Vietnamese, RTL, engine messages	localization	medium	80–140 h + human	localization-parity
G14	Camera Raw depth	features, formats	medium	120–200 h	file-format-parity
G15	AI and generative features	AI	medium (high for some users)	300–600 h + human	target-app-parity
G16	Plug-in compatibility (.8BF, UXP)	ecosystem	medium	250–450 h + human	target-app-parity
G17	Platforms and distribution	platforms	low-medium	30–60 h + human	scorecard

Feature gaps

G1. PSD fidelity and Photoshop acceptance

• Missing: PSDs we write are not always accepted by Photoshop, and Photoshop-authored files don't always render as Photoshop renders them.
• Partial (2026-10-15, #5972 A1): GdFl noise fills render when all three RGB ranges are constant and transparency is disabled. Variable-range synthesis, HSB/Lab modes and transparency remain unsupported and are preserved verbatim; the five visual examples do not establish Photoshop's exact noise algorithm or include this degenerate constant case.
• Evidence: corpus floors (crates/io/tests/it/corpus.rs, scorecard): Photoshop-authored oracles 190/258 (74%; 32-bit Hue/Saturation 2026-10-22; smart filter masks 2026-10-14; CMYK and Lab adjustment layers, 32-bit unclipped adjustments, Levels, Threshold, Posterize and mask feathers 2026-10-13; Gradient Map luminosity 2026-10-13; CMYK Invert, Posterize and Threshold on the inks 2026-10-12), io corpus 148/170 (87%), psd-tools 249/309 (81%); round trips ~100% within the corpus. Smart-filter re-render matches 5/30. User reports: a PSD with text layers re-saved unmodified would not reopen (#2374, closed 2026-10-10), Photoshop 26.6 cannot reopen our files (#1281), "PSD not opening in Photoshop" (#2469), a CS2-era smart object unavailable (#2465, fixed 2026-10-12), PSB smart object blank (#1764), perspective placed layers flattened (#579, fixed by #426), PSB > 4 GB fails on Windows (#375; a generated 4.38 GB PSB opens, saves and re-opens through io on Windows, io tests/it/large_files.rs, 2026-10-13). No test opens our exports in a third-party editor (FILE-216-4). Mockups whose smart object uses Transform Warp's Cylinder re-rendered flat after Replace Contents (#4112, fixed 2026-10-14; vertical cylinders and ones with perspective are still unread).
• Impact: PSD is the format professionals exchange. Beta requires it to be reliable.
• Estimate: 150–250 h. Human: opening exports in Photoshop on the owner's Mac (or a scripted check there) is the only real oracle.

G6. Missing tools

• Missing (1 of 68): Art History Brush. Convert Point landed (#3204). Freeform Pen and Curvature Pen landed (#1054); Color Sampler landed (#1046, view.colorSamplers.*); Horizontal and Vertical Type Mask landed (#1055, type.createSelection); Perspective Crop landed (#1043, image.perspectiveCrop); Frame landed (#2914).
• Evidence: Tool enum (crates/ui-egui/src/state.rs) against the 67 <tool> entries of Photoshop's Default Keyboard Shortcuts.kys plus Remove, Triangle and Curvature Pen.
• Impact: users look for them by name and shortcut; several are daily tools for designers.
• Estimate: 60–100 h (2–9 h each, per the calibration).

G7. Workspaces shown as parameter dialogs

• Missing: Select and Mask workspace layout (TOOL-214-1, Refine Hair #2671; its view modes preview live since #1754, Refine Edge Brush #2972); Content-Aware Fill workspace with a paintable sampling area (TOOL-214-15); Vanishing Point plane editor (TOOL-214-14). Content-Aware Move's live preview of the result is done (TOOL-213-4, 2026-10-16, #6680: every selection the command takes, coarse first for large ones, then the exact result), as are Transform On Drop and Content-Aware Scale through the transform box (TOOL-214-7). Blur Gallery: Field, Iris, Tilt-Shift and Spin Blur are edited on the image with Photoshop's pins and handles (2026-10-11, #3373); Tilt-Shift has one band (the engine takes one), and Path Blur (#1759) is still a parameter dialog.
• Evidence: scorecard rows above, all partial or missing.
• Impact: these are the tools retouchers and compositors use daily; a slider dialog is not a substitute.
• Estimate: 80–140 h.

G8. Type depth

• Missing: type on a path beyond rigid glyph placement (TYPE-218-1 partial, #4365; the Type tool's click on a shown path landed), the visual RTL caret and PSD storage of the paragraph direction (TYPE-218-2; the paragraph direction buttons landed 2026-10-22), complex-script fallback fonts and golden tests (TYPE-218-3), OpenType Numerals and Stylistic Sets submenus (TYPE-218-5; the Character panel buttons landed 2026-10-11, #3752), text free transform (#2630), area type in PSD (TYPE-218-10). Done since the re-measure: manual and optical kerning with PSD round trip (TYPE-218-6, #206), variable-font axes (TYPE-218-4, #2985), Warp on live type without a rasterize prompt, as in Photoshop (TYPE-218-9, #3004), and the live Warp Text preview that opens with the layer's warp (TYPE-218-7, #2689).
• Evidence: scorecard Type: 5 done, 5 partial, 0 missing. 2026-10-11: 2/3/4/5 clicks select word, line, paragraph and all text, with tests (TYPE-218-8, #3493). 2026-10-15: area type, type inside a closed path or shape, with holes (TYPE-218-10). The Type tool froze the app for 60 s on one macOS machine (#2518).
• Estimate: 120–200 h.

G11. Actions and scripting

• 2026-10-21 evidence (#8304): Save Actions expands compound layer-property edits into separate Photoshop Set events, with rename last so named layer references remain valid. Exported descriptors and native playback at RGB 8/16/32-bit have regression coverage; independent Photoshop replay of the fix is still pending. No readiness percentage or estimate changed.
• Done 2026-10-17 (#7101): .atn Apply Layer Comp steps with a named compsClass reference import as layerComp.apply and export to the same Photoshop event. Names resolve in the document being played; missing comps stop playback. Other reference forms stay kept Photoshop steps and are reported as unsupported. AUTO-219-2 remains partial.
• 2026-10-13 evidence: Batch supports output naming templates using {name}, {serial} and a captured UTC {date}, with a starting serial number. Colliding names remain errors; custom output names cannot replace inputs. AUTO-219-5 stays partial.
• Missing: document-independent action recording (AUTO-219-1), Batch recursion, open-document inputs, progress/cancel and an error-log file (AUTO-219-5), ExtendScript/UXP compatibility. .atn steps outside the mapped events (paths, scripts, Generative Fill, Filter Gallery effects other than Spatter, Duplicate Layers into a new document, Bitmap halftone screens…) load as kept Photoshop steps that fail at playback by name.
• Done 2026-10-21: Batch and droplets take each result at the action's recorded Save, Save As or Save a Copy step, written to the destination folder (Photoshop's "Override Action 'Save As' Commands"). A document closed after its save is written as the save found it, so actions ending in Save As and Close no longer fail on every file, and a Close that leaves another document active no longer saves that one instead. While the saved document stays open, the steps after the save still apply (#3058). Saves inside a played action, and the CLI's batch loop, still save after the action.
• Done 2026-10-19: .atn steps that switch to another open document (a select of Dcmn by offset: the previous, next or Nth tab from the active one) import as document.activate {"offset"}, play and save back in the same shape, so actions that copy from one open document and paste into another no longer stop at the switch (#7103). An offset past the first or last open document is refused, not wrapped.
• Done 2026-10-17: a recorded Save As imports with its format and destination file (file.saveAs, or file.saveACopy for As a Copy) instead of as a plain Save, which wrote over the file the action was played on (#7102). A folder destination, an unmapped format or a mismatched extension stays a kept Photoshop step, so playback stops before writing; folder saves wait for #5430.
• Done 2026-10-12: Load/Save Actions .atn in the panel menu, batch --actions set.atn and actions.load/actions.save; 112 Photoshop events map to commands both ways (Transform, Apply Image, Save for Web, smart-object edits, Gradient Map, Quick Mask, polygon selections, Place, Open, Image Size in percent, the Paint Bucket and Insert Conditional since the third and fourth PRs; Select and Mask, Filter Gallery Spatter, Ripple, Crystallize, Pattern Fill layers, targeting the layer mask or composite channel, loading the targeted channel, Step Backward/Forward, removing a layer from the selection, nudges in points, Layer From Background, Grayscale and Bitmap mode objects and Image Size with Resample keeping the print size since the fifth), Play, Stop and conditional steps included; layer steps replay by layer name in any document. Four TrueGrit Texture Supply sets (Debaser, Distress Press, Halftone Zine Machine, Transparency) import with 3 of 533 steps unmapped and play end to end. Filter Gallery Spatter's Smoothness now smooths the spray's displacement, so high values tear an edge without detaching specks, as Photoshop's does (calibrated by eye on the Distress Press guide's screenshots). Crystallize fills each cell with the colour at its point instead of the cell's average, so a black-and-white mask keeps hard edges (not yet checked against a Photoshop render). The panel groups actions in set folders, has the dialog toggle column (playback pauses on the step's dialog and resumes on OK) and Insert Stop…; actions.insert, actions.dialog, actions.assignSet for agents (AUTO-219-2 done).
• Ahead of Photoshop: CLI, MCP and the JSON control channel drive every command.
• Estimate: 120–200 h. Human: whether to support a JavaScript scripting dialect at all (AGENTS.md forbids JS in the app).

G14. Camera Raw depth

• Missing: CR3 (detected, unsupported), compressed RAF, lossy DNG (FILE-215-11), .xmp sidecars, masking and calibration in the Camera Raw dialog, per-camera colour for non-DNG cameras, lens profiles.
• Evidence: crates/raw/src/lib.rs:228 (CR3), scorecard FILE-215-11/12, #50.
• Progress (2026-10-11): on the embedded-JPEG rendering work in #2135, Camera Raw tuning retains the fitted look and applies user gains afterwards. Three D5100 NEFs establish a guarded 4928 × 3264 image area. This is an estimated rendering, not a measured D5100 colour calibration; validation.
• Progress (2026-10-14): a Nikon NEF's embedded preview takes its colour space from the maker note's ColorSpace (0x001E: 1 sRGB, 2 Adobe RGB) when the EXIF states none, so the colour fit reads an Adobe RGB preview as Adobe RGB (49 of the 291 public Nikon samples; Nikon writes no EXIF ColorSpace); crates/raw/src/preview.rs. A raw's preview-fallback document is still opened untagged.
• Progress (2026-10-13): the D90's image area (4288 × 2848 at (10, 10) in a 4352 × 2868 plane) is measured by aligning the decoded plane with the camera's own JPEG, so a D90 NEF opens on the camera's frame instead of the uncropped sensor plane; crates/raw/src/cameras.rs (IMAGE_AREAS).
• Progress (2026-10-14): the measured Nikon D4 profile's saturation level follows the sample depth (15520 at 14 bits, 3880 at 12), so a 12-bit D4 NEF opens as bright as the same scene at 14 bits instead of 2.6 stops darker (#5978). Real CC0 pair, mean linear luminance against the 14-bit file: 12-bit lossy +0.02, uncompressed -0.02, lossless +0.01 stop; 14-bit output unchanged (cameras.rs, tests/it/nikon_d4_depth.rs).
• Estimate: 120–200 h.

G15. AI and generative features

• Missing: Generative Fill and Expand, Generative Upscale, Neural Filters, Sky Replacement, Super Zoom, ML Select Subject/Sky. There is no ML runtime (AUTO-219-7). Classical substitutes exist (GrabCut/max-flow selection, Remove tool by non-local patch completion).
• Evidence: Photoshop's Required/UXP ships the Neural Filters gallery and its .kys has a Neural Filters taskspace; users ask for local models (#2313, #1996, #2682).
• Progress (2026-10-17): classical Object Finder no longer rejects a foreground solely for covering over 60% of the canvas (#6548); canvas-boundary coverage distinguishes it from the surrounding backdrop. This does not add semantic recognition or close #2788.
• Estimate: 300–600 h. Human: owner decision #41 (model licences, local vs remote).

G16. Plug-in compatibility

• Missing: hosting Photoshop .8BF filters (#2647), UXP panels, CEP. PhotoCraft has its own sandboxed WebAssembly plug-in ABI v1 (docs/plugins.md), but ABI v2 (panels, progress, other layers) is missing (AUTO-219-6).
• Estimate: 250–450 h. Human: .8BF needs native code under the isolated-unsafe rule.

UI / UX gaps

G3. User-reported bug backlog

• Missing: fixes for 579 open issues (2026-10-10), filed mostly by 0.5/0.6 users. By title: ~150 UI/panels/menus/shortcuts, 94 file/format, 87 layers, 54 painting, 54 selection, 46 type, 41 performance, 34 transform/move, 25 Linux/Wayland, 24 Windows, 20 macOS.
• Impact: each is a place where a Photoshop user hits something different from what they expect; together they are why ready-for-real-work is ~45% while breadth is ~76%.
• Estimate: 250–400 h (many overlap with other gaps; count each fix once).

G4. Brush feel

• Progress (2026-10-13, #3825 partial): Transfer’s Wetness Jitter and Mix Jitter blocks are disabled outside the Mixer Brush, retaining their saved settings. Opacity and Flow keep their existing availability; other layout and brush-feel gaps remain open.
• Progress (2026-10-14, #3825 partial): Brush Pose has separate X/Y tilt override controls. ABR import retains both flags independently instead of combining them; only the selected component replaces live stylus input. Legacy combined JSON and command inputs retain their two-axis behavior, and minimal command patches preserve the other axis. Other Brush Settings and brush-feel gaps remain open.
• Progress (2026-10-14, #3477 workflow): section locks expose their section-specific translated names and locked state to AccessKit. A themed outline follows keyboard focus; focus changes do not edit settings. Keyboard activation preserves the selected section and other brush settings, using the existing command path. Other panel and brush-feel gaps remain open.
• Progress (2026-10-13, #3825 partial): Hue Jitter shows a standard themed percentage-amount track rather than a hue spectrum. Other Brush Settings layout and brush-behaviour gaps remain open.
• Progress (2026-10-13, #3825 partial): Shape Dynamics' Minimum Diameter / Minimum Roundness and Transfer's four Minimum rows disable editing when their Control is Off, retaining the configured values. The other layout and control gaps in #3825 remain open.
• Progress (2026-10-12, #4283): the five checkbox-only Brush Settings rows keep the open controls selected; Smoothing can be disabled without discarding its amount or mode. This closes that panel interaction gap, not the stroke-quality or performance gaps below.
• Missing: lag with big brushes (#2619, #1994) and under the cursor (#2566, #1343); jumpy pressure on Windows (#2046) and tap sensitivity (#1933); stair-stepped line weights (#1776), interpolation and smoothing problems (#2138), edge falloff (#2149), pixelated cursor vs Photoshop (#1433), brush rotation not driven by pen rotation (#1301); no live preview for the Mixer Brush yet (TOOL-213-7, in PR #3627; the other brush tools draw live, Spot Healing and Remove compute on release as in Photoshop); no image file as a brush tip (TOOL-213-12); per-control pressure curves (TOOL-213-11); 4 of Photoshop's symmetry modes.
• Detail: brush-parity.md.
• Estimate: 100–180 h. Human: checking feel on real tablets.

G5. Transform, handles and modifiers

• Missing: the full interpolation list; blend mode/opacity edits during a transform (#1384); path-point nudge; autoscroll at the edge while selecting (#2231); wheel and pinch behaviour (#2485, #2463, #1989); toolbar press-and-hold flyouts (#2301).
• Done since the re-measure (2026-10-10 to 12): right-click menu during Free Transform (TOOL-214-5); commit/cancel buttons in the options bar (#2442); transform keeps the layer's place in the stack (#2439, #2480); Hand tool no longer interrupts a transform (#2302, #2327); locked layers refused before the drag (#2585, #2609); ⌘-drag temporary Move with box and snapping (#2681, #2684); Auto-Select box follows the picked layer (#2666, #2675); ⌘-arrow layer nudge (#2474, #2556); polygonal lasso Shift angles (#2352, #2396); double-click Zoom tool to 100% (#2508, #2527); tool-key memory in a group (#2608, #2625); hold-a-key spring-loaded tools (#2672); H/V skew fields in the Free Transform options bar.
• Detail: ui-parity.md.
• Estimate: 60–110 h.

G9. Panels, preferences and workspace

• Progress (2026-10-21): adjustment clipping is reachable above the Properties editor in a compact dock (#5231), with all-theme layout coverage and 8/16/32-bit scope and undo/redo tests. The normal adjustment-layer scope and remaining estimate stay unchanged.
• Progress (2026-10-15): Preferences › General › Animated Zoom takes effect: a held Zoom tool press zooms continuously about the press point, ⌥ out (#6210, ui-egui/src/zoom_hold.rs).
• Progress (2026-10-14, #5556): Character and Paragraph controls stay available without a type target, editing persisted Type tool defaults inherited by new text. Formatting existing selected text keeps its current command and undo scope. Other panel gaps remain open.
• Progress (2026-10-12): toolbar tool shortcuts can be reassigned, removed and reset (#4086), with saved bindings, matching toolbar hints and regression coverage (ui-egui/src/tool_shortcuts.rs).
• Progress (2026-10-15): the Color panel has Photoshop's panel-menu modes (Hue Cube, Brightness Cube, Color Wheel, Grayscale/RGB/HSB/CMYK/Lab/Web Color sliders), its colour ramp and copy commands, the same in every theme (UI-217-17, #2569, #6000; ui-egui/src/color_panel_ui.rs).
• Missing: 24 of 171 preferences do nothing (scorecard prefs audit, 2026-10-15: Save in Background now takes effect, #6207); panel groups can't float or tear off into OS windows (UI-217-5, #1828, #1213, #2305); more themes (UI-217-11, #2661); a single pixel layer copies without its mask and styles (UI-217-23; fill and adjustment layers copy whole, #2344); tool-specific context menus beyond brushes, selections and Pen (context-menu-parity.md); Libraries, Comments, Contextual Task Bar panels.
• Estimate: 150–250 h.

G2. Interactive performance

• Measured progress (2026-10-10): Tilt-Shift's existing per-level halo/copy optimization measures 1.07–1.49× faster across nine local 24 MP cases, with exact finite output bits. The filtered proxy improves for medium/large blur; its default small blur and the 36 MP saturated-field gain are inconclusive. Method and full ranges. Native GUI latency remains unmeasured; no scorecard budget or parity percentage is changed by this work.
• Measured progress (2026-10-15): P25, cancelling a Gaussian Blur r 50 job on 24 MP, stops within 13–44 ms max over five runs (was 337–399 ms; budget 200 ms): the transparency-lock pass that puts a Background's alpha back now runs per tile in parallel and checks for cancellation, and column-strip box passes check between passes. On a layer with locked transparency (a Background) the uncancelled job is ~40% faster (p50 642–735 → 395–409 ms); other layers gain only the strip checks. Local runs, perf/baseline.json not re-measured yet (the scorecard still shows P25 as not run); command, revision, machine and per-run numbers in #6206. #6205.
• Missing: 22 of 25 budgeted scenarios are over budget (baseline 2026-10-05, a heavily loaded machine): layer move with styles 321 ms p50 against 25 ms, opacity change 276 ms against 20 ms, paste 12 MP 1.2 s against 100 ms, layer move on 15000×10000 16-bit 2.7 s, Content-Aware Scale 24 MP 954 s against 3 s, Select Subject 559 ms against 100 ms; the 150-layer nudge crashes the GPU compositor (P12); menus slow with thousands of layers (#2460); old machines lag (#2687).
• Estimate: 200–350 h. Serial in places (compositor architecture).

File-format gaps

G10. Missing and partial file formats

• Missing: JPEG Options' Matte, progressive Scans and size preview (FILE-215-19 partial), Photoshop PDF read and its vector/text/multi-page write (FILE-215-10, #2541; a single flattened page now saves via Save As / Save a Copy / CLI, 2026-10-11, #3401), AVIF read (#463) and default-build AVIF write, JPEG XL, JPEG 2000 (#1047), DICOM, EPS/DCS, Pixar, IFF write (read landed), WBMP, MPO/JPS, PICT, Scitex CT, Photoshop Raw; layered TIFF extra alpha channels (FILE-215-7); spot plates (FILE-215-17); .atn, .shc, .csh presets (.asl landed 2026-10-20) (FILE-215-15); C2PA (#1050).
• Detail: file-format-parity.md.
• Progress (2026-10-15): Cineon (.cin) 10-bit gray/RGB frames open and save (Save As .cin), sharing the DPX header/packing (crates/codecs/src/codecs/dpx.rs); a Cineon frame saved back keeps its code values.
• Progress (2026-10-13): Amiga IFF/ILBM (FORM ... ILBM/PBM ) 1–8-plane paletted bitmaps open read-only, stored or ByteRun1-compressed (crates/codecs/src/codecs/iff.rs); writing is still open.
• Estimate: 120–220 h.

Hardware gaps

G12. Pen tablets and display hardware

• Missing: tilt and rotation on Windows (pressure only, via WM_POINTER; no WinTab); native Wayland tablet-v2 (#79; the pen does not click on GNOME 50, #2622, KDE #2297); eraser end on flipped Wacom pens (#2285); HDR/EDR output (Photoshop has "Precise Color Management for HDR Display"); monitor profile detection off macOS and live profile changes; Touch Bar (macOS Intel only, low value); 3D mice.
• Detail: hardware-parity.md.
• Estimate: 80–150 h. Human: tablets and HDR displays to test on.

Localization gaps

G13. Hindi, Arabic, Vietnamese, RTL and engine messages

• Missing: catalogs for Hindi, Arabic and Vietnamese (3 of the 12 key languages); right-to- left UI layout; Devanagari fallback fonts (Thai #1909 and Khmer, Lao and Myanmar #3259 landed); engine error and status messages in English in every language; browser-locale detection and CJK fonts on the web; Japanese IME on Windows (#590); installed Japanese fonts missing from the font list (#2330); Arabic layer names as tofu (#1408, #1693).
• Evidence (2026-10-11): Czech dynamic UI wrappers, hardware labels and composed messages translate at display sites; engine errors remain English. This does not close G13.
• Evidence (2026-10-15): Russian gained the 1,229 dynamic labels the other catalogs already had (filter and adjustment parameters, Camera Raw, lighting, History/Layers/paths menus, metadata, System Info, status templates, dialogs), with a terminology note (localization-ru); engine errors remain English. This does not close G13.
• Detail: localization-parity.md.
• Estimate: 80–140 h. Human: native-speaker review of every catalog (none is recorded).

Platform gaps

G17. Platforms and distribution

• Missing: Windows code signing (material not obtained), a periodic recheck for the in-app update check (DIST-220-1 partial: Help › Check for Updates and an opt-out check once per launch, #5485), in-app bug report (DIST-220-3), Flathub (#173), starting without a GPU adapter (#2519, #2412), Windows 7 (#2310, out of scope), Intel Macs with OpenCore (#1859).
• Estimate: 30–60 h. Human: signing certificates.

Revision history

Date	Change	Summary
2026-10-22	minor	G17: Help › Check for Updates and an opt-out check once per launch (#5485), DIST-220-1 partial; estimate unchanged
2026-10-22	minor	G1: 32-bit Hue/Saturation unclipped with Photoshop's saturation factor, bright colours keep their hue, Colorize's saturation scaled by 1 − |Lightness|; photoshop rgb32 hue-saturation and hue-saturation-colorize pass; Photoshop-oracle floor 188 → 190 of 258 (#5781)
2026-10-21	minor	G9: adjustment clipping remains visible in compact Properties (#5231); no readiness percentage or estimate changed
2026-10-21	minor	#8304: compound layer properties export as separate Set events, rename last; independent Photoshop replay pending; percentages and estimates unchanged
2026-10-21	minor	G11: Batch and droplets take the result at the action's recorded Save / Save As step (Photoshop's "Override Action 'Save As' Commands"); estimate unchanged
2026-10-22	minor	G8: Auto / Left-to-right / Right-to-left paragraph direction buttons in the Paragraph panel, Properties and the Type options bar (#6793); TYPE-218-2 partial (the visual RTL caret is still missing, and PSD doesn't store the direction yet)
2026-10-19	minor	G10: JPEG Options dialog landed (FILE-215-19 partial: no Matte, progressive Scans or size preview); no readiness percentage or estimate changed
2026-10-19	minor	G11: .atn steps that select another open document by offset import as document.activate {"offset"}, play and save back (#7103); estimate unchanged
2026-10-19	minor	G11: a recorded Save As imports with its format and file (file.saveAs, file.saveACopy for As a Copy) instead of as a plain Save that wrote over the played file, #7102; folder destinations stop playback until #5430
2026-10-18	minor	G13: Russian gained the 1,229 dynamic UI labels other catalogs already had (filter and adjustment parameters, Camera Raw, lighting, History/Layers/paths menus, metadata, System Info, status templates, dialogs); engine messages and native review remain open
2026-10-17	minor	Classical Object Finder improvement; learned segmentation remains open
2026-10-15	minor	G10: Cineon write landed (10-bit log gray/RGB, Save As .cin)
2026-10-14	minor	G1: 32-bit Hue/Saturation unclipped (slider on whole levels) and Colorize's saturation scaled by 1 − |Lightness|; photoshop rgb32 hue-saturation and hue-saturation-colorize pass
2026-10-14	minor	G1: Lab adjustment layers' results are whole samples (native Lab path); photoshop lab8 curves passes
2026-10-19	minor	G9: Color panel modes, ramp and copy commands from its panel menu, the same in every theme (UI-217-17 done, #6000)
2026-10-15	minor	G1 / #5972 A1: render only provably constant-RGB GdFl noise fills; variable noise synthesis remains open
2026-10-20	minor	G10: .asl layer style library import and export landed (#1051)
2026-10-18	minor	G9: with no selection, Copy takes fill and adjustment layers whole and Paste recreates them (#2344); UI-217-23 stays partial (a single pixel layer copies its pixels only); estimate unchanged
2026-10-17	minor	G11: .atn Apply Layer Comp imports, plays and exports by comp name (#7101); other reference forms remain unsupported
2026-10-15	minor	G2: a cancelled 24 MP Gaussian Blur job stops within 44 ms max (P25, budget 200 ms; was about 400 ms; local runs, baseline not re-run), the uncancelled job on a locked-transparency layer about 40% faster; #6205
2026-10-15	minor	G9: Animated Zoom preference takes effect (hold the Zoom tool to zoom continuously, #6210); prefs that do nothing 25 of 166; no estimate changed
2026-10-16	minor	G7: Content-Aware Move's live preview covers every selection the command takes (over 256 × 256: a coarse result solved scaled down, then the exact one); TOOL-213-4 done (#6680)
2026-10-15	minor	G9: Save in Background off saves in the foreground under a modal progress dialog (#6207); preferences that do nothing 25 → 24 of 169
2026-10-14	minor	G1: PSD smart objects keep Transform Warp's Cylinder through Replace Contents, Relink, Edit Contents and re-saves (#4112)
2026-10-15	minor	G8: area type: Type tool click inside a closed path or shape wraps text inside it (TYPE-218-10); Type tool click on a path's outline (TYPE-218-1); Type scorecard 5 done, 4 partial, 1 missing
2026-10-14	minor	G14: the Nikon D4 profile's white level follows the sample depth, so 12-bit D4 NEFs no longer open 2.6 stops dark (#5978); gap remains open
2026-10-14	minor	G4: independent Brush Pose X/Y overrides across UI/import/painting/commands (#3825 partial); legacy combined input retained; no readiness percentage or estimate changed
2026-10-14	minor	G4: existing Brush Settings section locks expose accessible names/state and visible keyboard focus (#3477 workflow); no readiness percentage or estimate changed
2026-10-13	minor	G4: Transfer Wetness/Mix tool applicability (#3825, partial); no readiness percentage or estimate changed
2026-10-14	minor	G1: a PSD smart object's filter mask shows when the file opens (Photoshop stores the filtered pixels unmasked); export stores them that way too; Photoshop-oracle floor 185 → 188 of 258
2026-10-14	minor	G14: a Nikon NEF's Adobe RGB preview is read as Adobe RGB (maker-note ColorSpace 0x001E); gap remains open
2026-10-13	minor	G14: D90 image area measured (4288 × 2848 at (10, 10)); gap remains open
2026-10-14	minor	Corpus floors raised to the measured results of the CMYK, Lab, 32-bit, Levels, Threshold, Posterize, feather and pass-through fixes landed together: Photoshop-authored 165 → 185 of 258, io 146 → 148 of 170, psd-tools 242 → 249 of 309
2026-10-13	minor	G1: generated large-file fixtures (20 MP, 150 layers, 2 GB PSD, 4.38 GB PSB) round-trip in io tests/it/large_files.rs; the 4.38 GB PSB opens on Windows through io (#375 evidence); FILE-216-2 done (#5107)
2026-10-13	minor	G1: CMYK Hue/Saturation and Color Balance work on C, M and Y as inverted RGB with black kept, as Photoshop does; cmyk hue-saturation 100% → 0.4–0.7% bad pixels, color-balance 74% → 25%; floor unchanged
2026-10-13	minor	G1: CMYK Posterize works on the stored values (1 − ink); psd-tools posterize_cmyk passes; psd-tools floor → 242 of 309
2026-10-13	minor	G1: CMYK stacks with Invert, Posterize, Threshold, Brightness/Contrast, Levels or Curves layers composite on the document's own inks (14 CMYK oracles pass); Photoshop-oracle floor 151 → 165 of 258
2026-10-13	minor	CMYK Threshold compares the Rec. 601 luma of the inks' plain complement, as Photoshop does (every pixel of cmyk8/16 threshold-128.psd); oracle bad pixels 1.6% → 0.2%
2026-10-13	minor	G1: CMYK Brightness/Contrast (modern and legacy) curves each ink's stored value as Photoshop does; oracle bad pixels 71% → 48–57%, floor unchanged
2026-10-13	minor	G1: modern Brightness/Contrast's brightness curve refit to Photoshop (six oracles pass); Photoshop-oracle floor 145 → 151 of 258
2026-10-13	minor	G1: Lab documents composite Invert, Posterize, Threshold, Brightness/Contrast and Lab Levels/Curves on their stored L, a, b (no clipped RGB round trip); seven Lab oracles pass; Photoshop-oracle floor 145 → 152 of 258
2026-10-13	minor	G1: Levels round every step to whole levels and use Photoshop's shadow toe (slope 2^gamma); levels_rgb and stack-levels-curves-hue-posterize pass; Photoshop-oracle floor 145 → 146 of 258, psd-tools 236 → 238 of 309
2026-10-13	minor	G1: 32-bit legacy Brightness/Contrast (pivot 127), Channel Mixer (1/1024 steps, constant ×255/512), Photo Filter and Black & White tint unclipped as Photoshop computes them, CPU and GPU; Photoshop-oracle floor 145 → 149 of 258
2026-10-13	minor	G1: mask feathers blur with exactly the feather's variance; psd-tools mask-parameters-no-real-channel passes, layer_mask_data 27 % → 4 % off; psd-tools floor → 240 of 309
2026-10-13	minor	G1: Threshold splits on Photoshop's luminosity of whole samples (8- and 16-bit rules exact on four oracles); psd-tools threshold_rgb and threshold_16bits_rgb pass; psd-tools floor → 241 of 309
2026-10-13	minor	G1: a pass-through group that is a clipping base and holds an adjustment layer renders isolated; psd-tools passthrough_clipping_mask_adjustment passes; psd-tools floor → 240 of 309
2026-10-13	minor	G1: 16-bit Posterize bins the 16-bit sample, as Photoshop does (exact on two oracles); psd-tools floor → 241 of 309
2026-10-13	minor	G1: Gradient Map driven by the W3C luminosity (0.3, 0.59, 0.11), as Photoshop is; rgb8/rgb16 gradient-map pass; Photoshop-oracle floor 145 → 147 of 258
2026-10-14	minor	G9: Character/Paragraph defaults before creating text (#5556); no percentage or estimate changed
2026-10-13	minor	G6: stale "missing tool" list corrected against main — Color Replacement (paint.colorReplacement), Red Eye (paint.redEye) and Add/Delete Anchor Point (P flyout, #4144) are live tools, so the toolbox is 67 of 68 and Art History Brush is the only one missing; no percentage or estimate changed
2026-10-13	minor	G10: Amiga IFF/ILBM read landed (1–8 planes, CMAP, stored and ByteRun1); IFF write remains open
2026-10-13	minor	G8: a Type tool click on the work path or the active shape layer's path starts type on it at the point clicked (TYPE-218-1, partial); no readiness percentage or estimate changed
2026-10-13	minor	G4: Hue Jitter amount-track appearance (#3825, partial); no readiness percentage or estimate changed
2026-10-13	minor	G4: minimum inputs in Shape Dynamics and Transfer follow their Control (#3825, partial); no readiness percentage or estimate changed
2026-10-12	minor	G5: Free Transform options bar H/V skew fields done
2026-10-12	minor	G11: .atn import maps 112 events (Select and Mask, Spatter, Ripple, Crystallize, Pattern Fill, mask targeting, Step Backward, points, Bitmap)
2026-10-12	minor	G9: toolbar tool shortcut editing (#4086); the remaining workspace gaps stay open
2026-10-12	minor	G1: #2465 (CS2 PlLd-only smart objects) marked fixed
2026-10-12	minor	G1: CMYK Invert, Posterize and Threshold work on the inks, 16-bit Lab Invert keeps greys neutral; Photoshop-oracle floor 133 → 145 of 258 (145 already passed on main)
2026-10-12	minor	G5: spring-loaded tool letters done (#2672)
2026-10-13	minor	G10: Cineon read landed (10-bit gray/RGB, shares the DPX path); Cineon write remains open
2026-10-12	minor	G10: DPX read and write (#1049); Cineon remains open
2026-10-12	minor	G4: checkbox-only Brush Settings rows preserve the open controls and Smoothing settings (#4283); no readiness percentage or estimate changed
2026-10-11	minor	G8: the live Warp Text preview (TYPE-218-7) moved to done; TYPE-218-9 listed as done; Type evidence recounted to 5/3/1 (TYPE-218-1 type on a path is partial on main)
2026-10-12	minor	G11: Load/Save Actions .atn landed (AUTO-219-2 partial); remaining panel work listed
2026-10-12	minor	Refreshed against main: G5 items fixed by #2480, #2327, #2609, #2684, #2675, #2556, #2396, #2527, #2625 and TOOL-214-5/#2442; G7 TOOL-214-7 and Transform On Drop done; G2 #2377 fixed (#2417); G9 UI scale (UI-217-9) and Stamp Visible (UI-217-22) done, prefs 27 of 156; G10 #2225 done (#2482); G13 Khmer, Lao, Myanmar fallback (#3259); G14 CR3 line; G17 Windows ARM64 done (DIST-220-2)
2026-10-11	minor	G7: Tilt-Shift's band (lines, turn dots) and Spin Blur's pins (outline handles, blur-angle ring) on the image; Path Blur remains a dialog
2026-10-11	minor	G7: Iris Blur's pins, outline, roundness and feather handles on the image too; Tilt-Shift, Spin and Path Blur remain dialogs
2026-10-11	minor	G7: Field Blur pins are placed, dragged and tuned on the image (#3373); the other Blur Gallery filters remain dialogs
2026-10-11	minor	D5100 image area and Camera Raw tuning validation; G14 remains open
2026-10-11	minor	G13: Czech dynamic UI text localized; engine messages and native review remain open
2026-10-11	minor	G8: triple/quadruple/five-click type selection done (TYPE-218-8, #3493); Type evidence recounted
2026-10-11	minor	G4: Pattern Stamp and Background Eraser draw live, Spot Healing shows a dark overlay while dragging (#3754); only the Mixer Brush is left of TOOL-213-7
2026-10-11	minor	G8: Character panel OpenType buttons landed (TYPE-218-5, #3752); Numerals and Stylistic Sets submenus still missing
2026-10-11	minor	G10: one-page flattened PDF write shipped (io::pdf, #3401); FILE-215-10 now partial
2026-10-10	minor	G2: recorded Tilt-Shift computation/filtered-proxy measurements and limits; gap and estimate remain open
2026-10-10	minor	Checked against the alpha gate (no alpha blockers); #2374 marked closed
2026-10-10	major	First version, from the full re-measure against Photoshop 2026 27.11.0 and the open issues