Merge upstream/main into feat/fig-export-region-paints

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
Model-Effort: Opus 5.5 drove; Opus 5.5 briefed; Sonnet 5.5 wrote at medium

docs/file-format-parity.md

@@ -1,6 +1,6 @@
 # File format parity
 
-> **Last reviewed:** 2026-10-10 · **Last updated:** 2026-11-12 · **Change:** minor (`.fig` export writes vector region paints (#2302); `.fig` export writes list spacing, hanging punctuation and lists, and vertical trim (#2305); `.fig` import and export read and write a boolean group's corner radius and smoothing (#2222); `.jam` import: stickies come in as native board stickies (#1808); `.fig` import scales per-point vector corner radii with the row that supplies their network and keeps different instance scales separate in the network cache (#2097); `.fig` export preserves scaled-instance lengths reset to their unscaled main values, including nested linked-style overrides (#2097); `.fig` import: the layers of an instance scaled with the Scale tool draw at its scale factor, not at their main's lengths (#2091); a color profile per PNG, JPG and WebP export setting (Same as file, sRGB or Display P3), the pixels converted; a `.jam` connector end with an `AUTO` or `CENTER` magnet leaves the side facing the other end, not the side its stale saved point named (#1909); a FigJam elbow connector saved with its path (`connectorControlPoints`) keeps it on import, as a board connector reshaped by hand does, instead of being routed again (#1910); JPG exports take a quality, 1 to 100 with 90 the default, and embed the file's colour profile when it is sRGB too (#2004); a FigJam connector without a saved snapshot took no stroke and was invisible; its line's paint, weight, cap and dashes now come from the file's generated line record (#1807); a Dash cap setting (none, round or square) on Dash and Custom strokes, drawn on both ends of every dash; pasted layers whose image the clipboard lacks are named and show a placeholder that reads as missing (#1646); paint-style colours on layers pasted from another design app keep their style instead of turning black (#1638); imported and pasted text finds an installed family under the other names its fonts give it, and with other case and spacing (#1292); `.fig` export writes colour calculations as the colour they show in each mode and leaves out, with a warning, one that resolves to nothing (#1280); `.fig` import budgets four decoded values per compressed byte instead of one, still within 20M–128M, so dense files within that budget open instead of being refused as having too many values (#574); `.fig` ZIP image reads share a total byte budget and count skipped images in the import warnings (#1076); every file a command reads whole by path is a regular file within a cap that fits it: documents 16 GiB, placed images 256 MiB, CLI scripts 1 GiB; folders, devices and pipes are refused before anything is read (#1114); files nested 256 levels deep import on the browser's 1 MB stack (#1101); SVG and PDF exports count pattern sources and the renders they embed from the layer's depth, so one cap bounds a whole export (#1082); opening a `.figcraft` file unpacks at most 6 GiB in all (2 GiB in the browser), every area together (#1079); `.fig` instance expansion no longer walks variable nodes for every instance or copies every outer override row into each nested instance (#1077); a FigJam `.jam` file opens as a board (#1342); FigJam `.jam` files open like `.fig` files: File ▸ Open, drag and drop, `file.import` and the command line (#1342); SVG import reads `color()` and `color-mix()` colours, with a note and a grey for those it can't (#1550); SVG import draws each pattern tile once per scale, within the layer budget (#1080); a file's JPEG thumbnail can't crash the home screen (#1491's progressive JPEG check, now shared); `.fig` import: library text styles linked by asset key, and override rows restating a nested level (#1234); `.fig` import keeps the file's saved line breaks while the text and its box are unedited (#1236); Download a missing free font from the Missing fonts window (`font.download`, #754); offline Penpot 2.x import/export (#1143); `.sketch` import checked against Sketch's renders: master backgrounds, symbol clipping, tints before Sketch 64, mask opacity, bitmap fills, image overrides on shapes, stretching stacks, blur radii, colour adjustments, OKLab gradients, text growth, shape group borders (#1389); FigJam outer shape outlines and sticky body fallback beside author text (#1341, #1397); image member names are checked on read, and REST image placeholders get archive-safe keys (#1086); Android Vector Drawable (XML) export; `.fig` export: files the incumbent imports, with component set properties, and grid track sizes at its field ids; Save and auto-save don't replace changes another app made to the open file (#1330); `.sketch` import, best effort, Sketch 48 and newer; the PNG row names ignore overlapping layers and where include bounding box is offered; the Fonts table's missing-font row describes the Missing fonts window; `.figcraft` carries the file kind (boards); `.fig` import: resized instances and variable modes by asset key; atomic saves; auto-save; SVG export clip of nesLine truncated
+> **Last reviewed:** 2026-10-10 · **Last updated:** 2026-11-13 · **Change:** minor (`.fig` export writes vector region paints (#2302); `.fig` export writes a page's prototype background (#2326); `.fig` export writes list spacing, hanging punctuation and lists, and vertical trim (#2305); `.fig` import and export read and write a boolean group's corner radius and smoothing (#2222); `.jam` import: stickies come in as native board stickies (#1808); `.fig` import scales per-point vector corner radii with the row that supplies their network and keeps different instance scales separate in the network cache (#2097); `.fig` export preserves scaled-instance lengths reset to their unscaled main values, including nested linked-style overrides (#2097); `.fig` import: the layers of an instance scaled with the Scale tool draw at its scale factor, not at their main's lengths (#2091); a color profile per PNG, JPG and WebP export setting (Same as file, sRGB or Display P3), the pixels converted; a `.jam` connector end with an `AUTO` or `CENTER` magnet leaves the side facing the other end, not the side its stale saved point named (#1909); a FigJam elbow connector saved with its path (`connectorControlPoints`) keeps it on import, as a board connector reshaped by hand does, instead of being routed again (#1910); JPG exports take a quality, 1 to 100 with 90 the default, and embed the file's colour profile when it is sRGB too (#2004); a FigJam connector without a saved snapshot took no stroke and was invisible; its line's paint, weight, cap and dashes now come from the file's generated line record (#1807); a Dash cap setting (none, round or square) on Dash and Custom strokes, drawn on both ends of every dash; pasted layers whose image the clipboard lacks are named and show a placeholder that reads as missing (#1646); paint-style colours on layers pasted from another design app keep their style instead of turning black (#1638); imported and pasted text finds an installed family under the other names its fonts give it, and with other case and spacing (#1292); `.fig` export writes colour calculations as the colour they show in each mode and leaves out, with a warning, one that resolves to nothing (#1280); `.fig` import budgets four decoded values per compressed byte instead of one, still within 20M–128M, so dense files within that budget open instead of being refused as having too many values (#574); `.fig` ZIP image reads share a total byte budget and count skipped images in the import warnings (#1076); every file a command reads whole by path is a regular file within a cap that fits it: documents 16 GiB, placed images 256 MiB, CLI scripts 1 GiB; folders, devices and pipes are refused before anything is read (#1114); files nested 256 levels deep import on the browser's 1 MB stack (#1101); SVG and PDF exports count pattern sources and the renders they embed from the layer's depth, so one cap bounds a whole export (#1082); opening a `.figcraft` file unpacks at most 6 GiB in all (2 GiB in the browser), every area together (#1079); `.fig` instance expansion no longer walks variable nodes for every instance or copies every outer override row into each nested instance (#1077); a FigJam `.jam` file opens as a board (#1342); FigJam `.jam` files open like `.fig` files: File ▸ Open, drag and drop, `file.import` and the command line (#1342); SVG import reads `color()` and `color-mix()` colours, with a note and a grey for those it can't (#1550); SVG import draws each pattern tile once per scale, within the layer budget (#1080); a file's JPEG thumbnail can't crash the home screen (#1491's progressive JPEG check, now shared); `.fig` import: library text styles linked by asset key, and override rows restating a nested level (#1234); `.fig` import keeps the file's saved line breaks while the text and its box are unedited (#1236); Download a missing free font from the Missing fonts window (`font.download`, #754); offline Penpot 2.x import/export (#1143); `.sketch` import checked against Sketch's renders: master backgrounds, symbol clipping, tints before Sketch 64, mask opacity, bitmap fills, image overrides on shapes, stretching stacks, blur radii, colour adjustments, OKLab gradients, text growth, shape group borders (#1389); FigJam outer shape outlines and sticky body fallback beside author text (#1341, #1397); image member names are checked on read, and REST image placeholders get archive-safe keys (#1086); Android Vector Drawable (XML) export; `.fig` export: files the incumbent imports, with component set properties, and grid track sizes at its field ids; Save and auto-save don't replace changes another app made to the open file (#1330); `.sketch` import, best effort, Sketch 48 and newer; the PNG row names ignore overlapping layers and where include bounding box is offered; the Fonts table's missing-font row describes the Missing fonts window; `.figcraft` carries the file kind (boards); `.fig` import: resized instances and variable modes bLine truncated
 
 Every format Figma reads or writes, with FigCraft's support. Sources: `Info.plist` of
 `/Applications/Figma.app` (document types only; nothing inside the bundle's code was read), Figma's
@@ -92,7 +92,7 @@ an inherited style link keep their own values and the link; stale copies on the
 still yield to the style. These cases have synthetic export/import regressions, including nested
 scales and empty-style clears; they have not been checked in other software.
 
-- **Written:** pages (name, background); frames, groups, sections, rectangles (as rounded
+- **Written:** pages (name, background, prototype background as an opaque colour, for every page); frames, groups, sections, rectangles (as rounded
   rectangles, with their four radii), ellipses (arcs), polygons, stars, lines, vectors (editable
   network blobs with per-point corner radius, handle mirroring, caps and joins, each filled area's own paints, plus the outline of
   their filled areas), text, boolean groups, slices; the fill outline of frames and shapes and the
@@ -137,7 +137,7 @@ scales and empty-style clears; they have not been checked in other software.
   text (written as values), the paint frames of vector regions, variables' publishing, code syntax and inheritance settings, extended
   collections (written as collections of their own), comments, Developer Mode annotations, statuses,
   resources, measurements and code links, plugin data, ruler
-  guides, prototype device settings, slot properties and slot content, brush
+  guides, a page's prototype device settings (device, rotation, colour, custom size, responsive), the opacity of a page's prototype background (written opaque), slot properties and slot content, brush
   strokes (written plain), strokes wider on one side of their path (written as filled outlines, or
   with the width on both sides when the shape has a fill too), pattern fills, WebP export settings (written as PNG),
   image adjustments, glass settings other than frost, springs other than Gentle (written as ease
@@ -197,6 +197,7 @@ scales and empty-style clears; they have not been checked in other software.
 | Date | Change | Summary |
 |---|---|---|
 | 2026-11-12 | minor | M6, #2302: the `.fig` export writes the paints of a vector's own regions: each region with paints of its own (an empty list means unfilled) names an entry of the network's style table (`styleOverrideTable[].fillPaints`), equal lists share one entry, and a region without paints writes style 0. The fill outline is still one path with style 0. A region's kept paint frame is still left out, with a narrower warning. The importer already read this; not checked in other software |
+| 2026-11-13 | minor | M6, #2326: `.fig` export writes a page's prototype background (the file's `prototypeBackgroundColor`, field 141, a plain colour, written for every page, so Figma shows the same colour and not its own default for a page at FigCraft's default), measured on a synthetic file saved from Figma's web app. The colour is written opaque, as that file has it and as the importer reads it; a background that isn't opaque gets a warning for its opacity. The device warning now fires only for the page's device settings (device, rotation, colour, custom size, responsive), which stay left out. Checked through the importer only, not in other software. Numbers unchanged. |
 | 2026-11-12 | minor | M6, #2305: the `.fig` export writes a text's list spacing (`listSpacing`), hanging punctuation (`hangingPunctuation`), hanging lists (`hangingList`) and vertical trim (`leadingTrim`: none or cap height), which the importer already read. A field is written only when it differs from its default (in a design file saved by Figma, a text at the defaults carries none of the four), and an instance override that goes back to the default clears it. The warning narrows to OpenType features, which the importer does not read from a `.fig`. Checked through the importer only, not in other software. |
 | 2026-11-10 | minor | M4, #2222: a boolean group's corner radius and smoothing are read and written by the `.fig` importer and exporter, and by the REST importer |
 | 2026-11-07 | patch | Fonts, #2092: a font loaded with `text.loadFont` is the counterpart of a font uploaded to the organization, which Figma's help center ("Manage conflicting fonts") ranks first, ahead of installed fonts and the web fonts. FigCraft chose the first face added for a family and style, so the built-in Inter 4.x kept Regular, SemiBold and Bold after Inter 3.19 was loaded and only Medium refitted. A loaded face now wins over the other faces of its family and style, the latest load over earlier ones; style matching and fallbacks are unchanged, and `refitted` lists the text whose size changes. Installed versus built-in order is not changed here. Test: `fontdb::tests::a_loaded_face_wins_over_the_built_in_one_of_its_family_and_style`. Numbers unchanged. |