* M6: plugin panels show images
An image control in a plugin panel carries a picture as base64 (at most 256 KB; panel specs up to 1 MB), drawn at its size up to a field's width and named by its label, which shows instead when the picture can't be decoded or is over 4,096 px on a side. Images can't be clicked or be command parameters. Panel and form captions no longer wrap.
* Render worker: in_flight counts the watchdog's late preview
The watchdog that previews a render running past PREVIEW_AFTER_MS could pass its still-rendering check, lose the race to the full render, and then hand over its preview and wake the UI after Worker::in_flight had gone false. An idle test that had settled then saw a 0 ns repaint whose cause egui reports a frame late (CI on #1639: 'asked for a repaint in 0ns: [app/files.rs:211]', the autosave tick of the previous frame). The watchdog now marks itself busy from before that check until it has handed over and woken (or skipped), and in_flight counts it; the full render's done markers are SeqCst so the watchdog sees a finished render before in_flight can read idle.
* Docs: drop a status item the merge listed twice
Plugin ABI v2: a plugin can show a panel (text, number, checkbox, select, colour, list, notes, buttons) rendered with FigCraft's widgets, react to events with its state kept between calls (each editing callback one undo step, full sandbox limits on every call), and store per-plugin settings (64 KB). plugin.ui / plugin.event / plugin.close drive panels from the CLI and MCP; v1 plugins run unchanged. The Swatch grid example gains a Palettes panel that remembers the last palette.
BFlat