feat(branding): per-brand default theme + palette via brand.json

Lets a deployer set the in-app color scheme a fresh visitor sees (e.g.
cfaun → darkmatter light) without forking. Two optional brand.json
fields, `theme` (light|dark|system) and `palette` (one of PALETTES),
distinct from `themeColor` which is PWA chrome only.

- vite-branding.ts surfaces them as VITE_BRAND_THEME / VITE_BRAND_PALETTE
  at module load, so the default applies app-wide (hub + all standalones)
  with no per-config wiring.
- theme-provider reads them as the INITIAL value of theme/palette; a
  user's stored choice in localStorage still wins and persists.
- Splits the catppuccin = bare `:root` invariant (now BASE_PALETTE, used
  by applyPalette to drop data-theme) from the configurable default.
  Without this, a non-catppuccin brand default would strip the
  data-theme attribute and silently render catppuccin instead.

Unset → the app's built-ins (dark + catppuccin), unchanged.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
This commit is contained in:
Padreug 2026-06-15 22:12:13 +02:00
commit d4d088fb50
4 changed files with 53 additions and 4 deletions

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@ -47,12 +47,16 @@ When both `logo.svg` and `logo.png` are present, SVG wins.
"name": "AIO", // required — drives PWA manifest name
"shortName": "AIO", // optional — PWA home-screen label; defaults to `name`
"themeColor": "#1f2937", // optional — PWA chrome color override (otherwise each standalone keeps its accent)
"backgroundColor": "#fff" // optional — PWA splash background
"backgroundColor": "#fff", // optional — PWA splash background
"theme": "light", // optional — default in-app mode: light | dark | system
"palette": "darkmatter" // optional — default in-app palette (see PALETTES)
}
```
`themeColor` and `backgroundColor` are *overrides*, not defaults. When unset, each standalone's own accent applies (wallet yellow `#eab308`, chat green `#16a34a`, …) — so the default brand kit preserves the per-app visual identity, and a deployer who wants unified chrome adds the override.
`theme` and `palette` set the **in-app** color scheme — distinct from `themeColor` (which is only the PWA chrome / status-bar color). They define the *initial* default a fresh visitor sees; once a user picks a theme in-app it's stored in `localStorage` and always wins. `palette` must be one of the names in `src/components/theme-provider` (`PALETTES`): `catppuccin` (the built-in default), `countrysidecastle`, `darkmatter`, `emeraldforest`, `lightgreen`, `neobrut`, `starrynight`. Each palette has both a light and a dark variant, so e.g. "darkmatter light" is `{ "theme": "light", "palette": "darkmatter" }`. Unset → the app's built-ins (`dark` + `catppuccin`). Applies app-wide (hub + every standalone).
## Per-standalone overrides
Place a logo at `branding/<dep>/icons/<app>/logo.{svg,png}` to override the brand's primary logo for a single standalone build.