Checked by importing synthetic files into the incumbent (Drafts > Import,
black-box) and against a "Save local copy" of a synthetic document.
- Images are named and referenced by the SHA-1 of their bytes. With
SHA-256 names, any file with an image failed to import ("Internal error
during import").
- Component sets hold their property definitions, variant properties
included (stateGroupPropertyValueOrders); each variant has its own copy
of each definition (parentPropDefId) and its variantPropSpecs, and its
layers and instances name that copy. Definitions and values also travel
as varValue; text values carry their lines; layers get componentPropRefs
next to the parameter consumption map. Before, sets came in without
variant properties and with their other properties unbound.
- An axis without a maximum size is written as infinite: 0 collapsed
auto layout frames with only a maximum width.
- Compound weights are spelt the way font families name their faces
("SemiBold"; "Semi Bold" in Inter): text in Libre Franklin Semi Bold was
a missing font there and wasn't drawn.
- The kiwi encoder writes infinite floats.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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.
.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).
- New `figcraft_format::rest`: imports the public REST API file JSON (`GET /v1/files/:key`, and
the nodes endpoint's response) using the published reference only. Pages (name, background,
flow starting points), the layer tree, names, visibility, lock, opacity, blend mode, masks.
- Geometry from `relativeTransform` (children of groups/booleans checked against
`absoluteBoundingBox` to settle their space), else absolute bounds + rotation; sizes, corner
radii (uniform and per corner), smoothing, clip content, constraints, export settings, layout
grids.
- Paints: solid, linear/radial/angular/diamond gradients (handles map 1:1), image fills (fill,
fit, tile, stretch, rotation, filters) with bytes from a resolver or a grey placeholder keyed by
the imageRef; paint opacity, visibility and blend. Strokes: weight, per-side weights, align,
caps, join, dashes, miter angle. Effects: drop/inner shadow (offset, radius, spread, show behind),
layer and background blur.
- Vectors from `fillGeometry` (stroke-only vectors use the `strokeGeometry` outline), ellipse arc
data, stars/polygons, boolean operations. Text: characters, type style (family, style or weight
+ italic, size, line height px/%/auto, letter spacing, case, decoration, alignment, auto resize,
truncation, paragraph spacing/indent, OpenType flags, links), per-character overrides → styled
runs (UTF-16 aware), list type.
- Auto layout: direction incl. grid, alignment, padding, gaps, wrap, hug/fixed/fill sizing (legacy
and per-axis fields), absolute positioning, min/max, grid cells.
- Components and sets with descriptions and property definitions (names lose their `#id`
suffix); instances of components in the file become instances with their property values and
listed overrides; outside components and component cycles stay frames. Shared styles are created
from the layers that use them, named from the metadata.
- Unknown types and fields are skipped with a counted warning list; sizes, depth (256), layer count
(200,000), path length and list lengths are capped; nothing panics on junk.
- Engine: `file.open` / `file.import` / CLI detect the JSON by content, link imported instances to
their mains (sources and overrides), read image fills from an `images` folder next to the file,
never save over the JSON, and return `warnings`. `file.import` now remaps ids across all
imported pages at once (instances keep their main and layer sources) and brings styles and page
backgrounds along. `figcraft-cli info` prints load notes.
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
Guillermo Bueno