# Theming (light / dark) The Inspector ships two themes from one token system. **Dark is the default** (the original "dark by conviction" surface); **light is an opt-in peer** — a calm, cool paper, never warm cream. A header toggle flips between them; the choice is persisted and applied before first paint. Open this when: adding a color anywhere, adding a token, touching a canvas that paints color, or debugging a surface that doesn't re-skin on theme flip. ## The one rule **Every color is a token. No raw hex/rgba/oklch literals in component CSS, `