A collection a saved file references by its asset key (the form library
collections keep) instead of a guid resolved to nothing, so every
explicitVariableModes entry was dropped silently and bound layers rendered
in the collection's default mode (#267). The .fig import now resolves such
references against the file's own nodes (the collection node carries the
same key) for mode entries and the variables' collection link, and reports
modes of collections it can't resolve.
A variable width is written only as the same reach on both sides of the path (a
point with unequal sides drew nothing elsewhere). A stroke wider on one side, on a
shape that shows nothing else, is written as a vector filled with the area it
paints, with the stroke itself kept as plugin data that the import puts back.
Bound layer and text fields also name the number of the field they set. Docs: text,
effect and grid styles and symmetric variable widths are checked; non-colour
bindings come across as values.
Variable-width points say each side's reach as a share of the stroke weight (in
pixels they drew far too wide elsewhere). Progress docs: instance sizes, variables
with modes and shared styles in the .fig export, and what was checked by opening
written files in other software.
Instances write what they change from their main as an override addressed by the
main's id (size, name, paints), what follows from that for their layers as derived
data (size, place, outline, colours their variables give), and a scale factor when
they were scaled as a whole; layers of a nested instance swapped for another
component keep their overrides. Variable collections, modes and variables are nodes
on a hidden page; paints, gradient stops, effects, layout grids and layer fields
name the variables bound to them, and frames and pages the modes they set. Shared
styles are nodes there too, linked from the layers that use them. Variable-width
strokes say their reach on each side of the path. The import reads all of it back
(style definitions and unused styles, variable order and scopes, bindings on paint
lists, stops, effects and grids, page modes, text bindings, width profiles).
- The document and its pages now say they are visible and opaque, and a page carries its background opacity and enabled flag. Left out, a reader took them as hidden and drew nothing: every frame was blank and the page background transparent.
- The schema written into the file uses the format's own names, kinds (struct or message), field ids and enum values for everything the export writes. The schema text parser takes `NAME=n` and `type field=n`.
- Rectangles are written as rounded rectangles with their four radii. Frames, components, instances and sections carry their fill outline; plain strokes carry their stroke outline (a ring around boxes and whole ellipses, the widened path of other centred strokes).
- Text carries its layout settings and one line entry per paragraph. Font styles are written under their standard names ("SemiBold" becomes "Semi Bold", "Regular Italic" becomes "Italic"); the import reads both spellings as the same style.
- A line height that is a share of the font size is written as a raw multiplier: percent units count from the font's own line height, so 140 % was laid out taller than in FigCraft.
- Masks keep their type (alpha, outline, luminance), written and read back.
- The import reads per-side stroke weights whose zero sides are left out (a bottom-only border no longer comes back on all four sides).
- `meta.json` gives the page colour and the thumbnail size; archive members are in the usual order. Texture effects are written under the format's grain type; WebP export settings are written as PNG with a warning (the format has none).
- Docs: `docs/file-format-parity.md`, `docs/gaps.md` (gap 1), `ROADMAP.md`, `docs/target-app-parity.md` (wording only; no number moves).
An experimental, best-effort `.fig` export, so work done in FigCraft can be handed back as a `.fig` file. It is written from the same public format write-ups the importer uses and is the inverse of the importer's mapping. Only round trips through FigCraft's own importer are verified; other apps may not open every file.
- **Encoder** (`crates/format/src/fig/kiwi.rs`): the kiwi encoder that test fixtures used is now shipped code. It never panics and checks every value against the schema: unknown fields or enum names, missing struct fields, wrong types, out-of-range numbers and non-finite floats are errors, and NULs inside strings are dropped. Varints and floats are written exactly the way the decoder reads them. `Schema::parse` reads the compact text schema form, and the importer's tests use it too.
- **Writer** (`crates/format/src/fig/export.rs`): writes the zip (`canvas.fig`, `meta.json`, `thumbnail.png`, `images/<hash>`). `canvas.fig` holds the fig-kiwi header, then a raw-deflate binary schema and a raw-deflate message (flate2's pure-Rust backend, already in the tree; no new dependencies). The schema covers only the fields we write. The canvas, images, blobs, node count and nesting depth are capped, and floats are made finite before they are written.
- **Mapping:** pages; frames, groups, sections, rectangles, ellipses (arcs), polygons, stars, lines and vectors (vector network blobs with per-point radius, mirroring and caps, plus fill outlines); text with styled runs (UTF-16 indexed) and list types; slices; boolean groups; solid, gradient and image paints (image bytes included); strokes; effects; corners; constraints; masks; auto layout, including grids with tracks and cells; child layout; layout grids; export settings; components, component sets and their properties. Instances are written as their main plus the fields their layers change, by id path. This covers nested instances and swaps, and fields the main sets but the instance clears. Prototype interactions (triggers, navigation and overlay actions, transitions, easing), scrolling and flow starts are included. Everything skipped is reported in a warnings list: style links, variables, comments, Dev Mode data, plugin data, guides, slots, brush and width-profile strokes, pattern fills, image adjustments, variable and conditional actions, and more.
- **Import fixes found by the round trips** (`map.rs`): ellipse arcs, boolean operation types and component set descriptions are now read. Durations are read as whole milliseconds, because seconds stored as 32-bit floats used to truncate by 1 ms.
- **File writes:** a failed write no longer leaves its `.tmp-figcraft` file behind. The junk-parameter sweep found this.
- **Commands and UI:**
- `file.export {format: "fig"}`, or any path ending in `.fig`, writes the whole file and returns `warnings`. Without a path it returns base64 `data`.
- File > Export... has a new "The whole file" section with a ".fig (experimental)" row. A note under it says other apps may not open every exported file. After export, a toast reports how many kinds of content were left out.
- `figcraft-cli export --format fig` (or `-o x.fig`) and `convert` to `.fig` print the warnings as `note:` lines.
- MCP's `export` accepts `format: "fig"` and passes the warnings through.
- New UI strings have English and Spanish entries.
- **Docs:** file-format-parity.md has a new export section covering what is written, what is skipped, and that only round trips through our own importer are verified. Also updated: mcp.md, cli.md, gaps.md (gap 1), target-app-parity.md and ROADMAP.md. Grading is kept low. Import/export goes to 86%/58% and file formats to 60%. The file-exchange discount stays at x0.85, because nothing shows that another app opens these files.
The `.fig` import's tail (gap 1):
- **Editable vector networks.** Vector layers now open as vector networks instead of their outlines: points, curved segments with their tangents, filled areas (loops) with their winding rule, per-point corner radius and handle mirroring, and end caps taken from the end points' own styles (an arrow drawn on one end keeps its arrowhead on that end only). The network blob is decoded defensively (`crates/format/src/fig/network.rs`: bounds-checked reads, capped counts, indices checked, floats finite) and scaled from its normalized size to the layer's size. When the blob is missing or damaged, or an open path shows a fill that regions can't hold, the outline import is used as before (damage is reported in the warnings).
- **Layer kinds that used to be dropped** now import as the closest editable layers, each kind with one warning: sticky notes, shapes with text, code blocks, tables and table cells, stamps, media, widgets and slide containers become frames with their paints and children, their text added as a text layer (notes top-left, shapes centred); a non-rectangular shape with text gets its saved outline as a vector under the frame; connectors, highlights and washi tape become vectors (the network or outline when saved, else a straight line between the connector's ends: free points or a point of a sibling layer) with the connector's end caps; text on a path becomes plain text.
- **Variable prototype actions:** set-variable (literal, variable or expression values), set-variable-mode and conditional actions (if / else blocks with expression conditions) are mapped onto the REST importer's existing support. A condition that can't be read makes the whole conditional skip with a warning rather than turning into an "else".
- The REST importer gained two small extensions the `.fig` mapping writes: `vectorNetwork` (FigCraft's own network JSON, validated: sizes capped, coordinates finite and in range, references sanitized, else the outline with a warning) and per-end `strokeCapStart` / `strokeCapEnd`.
- Docs: gaps entry 1, file-format parity, target-app parity, ROADMAP and the MCP guide's `.fig` section.
.fig files open through file.open, file.import, drag and drop, the dialogs, the CLI and MCP. A generic reader written from the public format description decodes the zip, the deflate/zstd chunks and the kiwi schema and message, then maps nodes by field name onto the REST importer: layer tree, geometry, paints with styles resolved, strokes, effects, text runs, vectors as outlines, auto layout including grid, constraints, components, sets, instances expanded from their main with overrides, styles, variables with modes and bindings, prototyping and image fills. Unsupported layers come back as warnings. Fuzzed; tested on fixtures generated in code. New dependency: ruzstd (pure-Rust zstd decoder).
bflatastic