The site-independent theme engine moves from wayBetter for X into the framework:
- runtime/themeSpec.ts: theme document types, the schema's defaults (BASE_*), sanitizing,
import, overrides, ensureContrast, font roles/stacks, font choices, backgrounds.
- runtime/themeChoice.ts: ThemeChoice and createThemeCatalog(builtins) (normalize, base,
resolve, palette, all), choiceForId, serializeChoice.
- runtime/themeRuntime.ts: installThemeRuntime(win, site) (live CSS over the site's rules,
--wb-* vars, site color mode, first-frame snapshot), collectRules, resolvedFonts.
- runtime/fonts.ts: bundled fonts and owner-downloaded Google Fonts from bytes.
- themeApi exports hexToRgb, mix and MONO_FAMILIES (one copy: themeTokens and themeSpec use them).
- host theme.rs: ThemeChoice/ThemeScopes over a site's ThemeSite (envelope checks against
theme.schema.json, which theme a tab shows, page color, delivery script).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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