add-theme

# add-theme (v1) A theme is a `pub static Theme` with ~90 color roles across **9** groups (surface, office, lighting, furniture, effects, ui, tool_glow, `ApplianceColors` for corridor appliances, and `SourceColors` for per-CLI dashboard badge hues). Every field must be supplied — corridor appliances render wrong until each theme provides its own set. ## When to use - "Add a `<name>` theme" / "new color scheme" / "port `<palette>`". ## The checklist Full current steps: **[`.github/prompts/add-theme.prompt.md`](../../../.github/prompts/add-theme.prompt.md)** + the theme notes in [`crates/pixtuoid/src/tui/CLAUDE.md`](../../../crates/pixtuoid/src/tui/CLAUDE.md). Read an existing theme (e.g. `crates/pixtuoid-scene/src/theme/dracula.rs`) for the full field set, then: 1. Create `crates/pixtuoid-scene/src/theme/<name>.rs` — fill EVERY field; never fall back to the normal palette. 2. Register: `mod` in `theme/mod.rs`, append `&<NAME>` to `ALL_THEMES`, `theme_by_name()` resolves the kebab-case name. 3. **Theme roles MAY share an RGB** (every bundled theme does) — the unique-RGB rule belongs to SPRITE PACKS (`RECOLOR_KEYS` B/H/S/P, enforced at pack load by `validate_recolor_palette`), not to themes. What binds a theme author are the per-theme legibility guards in `theme/mod.rs`: `appliance_palette_is_legible_for_every_theme`, `source_badges_legible_for_every_theme`, `token_paper_is_legible_on_the_desk_for_every_theme`, and `sun_and_moon_read_warm_and_coo...