M3: Color Guide Limit to Library, Edit or Apply without art, Color Themes panel (M3.95, M3.96)

[bflatastic]

Part of M3 (Paint & appearance). The Color Guide can be limited to a swatch library, Edit or Apply Colors works without art, and a local Color Themes panel makes, saves and applies five-colour themes. Color Themes has no online service.

• M3.95: Color Guide Limit to Library, Edit or Apply.
  • Limit to Library: the panel's library button opens None, Document Swatches, and every library with solid colours. Harmony colours and variations snap to the nearest colour there (ΔE 2000), reusing Recolor's Palette through Guide::limited, cached per base, rule, options, limit and document revision.
  • Commands: color.harmony {limitTo?} takes a library id or name, or "document". ui.colorGuideLimit {library} sets the panel's limit, which ui.inspect reports.
  • Shared helpers: swatchlib::limit_palette and limit_param also serve Recolor, so Recolor's Limit to Library accepts Document Swatches too.
  • Edit or Apply Colors: opens Recolor with the harmony colours, limited to the same library. With nothing selected, ui.recolorDialog {colors} opens on the colours alone and OK saves them as a colour group.
• M3.96: Color Themes panel (local only) (Window ▸ Color Themes).
  • Commands: colorTheme.list, colorTheme.save {colors | color + rule, name?, replace?}, colorTheme.delete, and colorTheme.addToSwatches (one undo step, through swatch.newGroup).
  • Model: Prefs::color_themes, written only when there are some, and kept by Reset Preferences.
  • Panel:
    • Create tab: a rule menu or Custom, the harmony wheel with brightness, five chips, hex, Use Current Color, name, and Save / Add to Swatches / New.
    • My Themes tab: Edit, Add to Swatches and Delete.
  • Colour crate: Harmony::theme fills a rule out to five colours.
  • Shared wheel: Recolor's colour wheel is now one shared widget, widgets::harmony_wheel, used by both.

docs/mcp.md and docs/control-protocol.md cover the commands and the panel.

Checks

Rebased onto 96a1a02. cargo xtask ci passes all 7 steps (fmt, clippy, test, assets, brands, layers, wasm): 1,886 tests, 0 failed.

• New tests:
  • every limited output colour is a library member;
  • nearest-colour ΔE;
  • Edit or Apply without art makes a group;
  • themes save, list and delete, and round-trip through the preferences;
  • Add to Swatches creates a group in one undo step;
  • headless panel tests.
• Checked in the running app: both panels and the library popup.

🤖 Generated with Claude Code