Immutable. This exact content is served forever at /api/v1/blob/f918ad3f158e7526.
--- name: "color-material-lighting-direction" description: "Define palette, material and lighting roles." --- # Color Material Lighting Direction ## Purpose Make palette, surface, and lighting choices support the site concept and readability. ## Required Use Use this skill when the trigger description applies. Keep the `SKILL.md` lean, then read `references/color-material-lighting-direction-guide.md` for concrete rules before planning or editing a meaningful website change. ## Scoped execution Apply the [shared web contract](../website-operating-rules/references/scoped-web-contract.md) once when execution crosses phases; reuse it if already read. Load only the specialist guidance relevant to the requested surface and deliverable. ## Detailed Guide Read `references/color-material-lighting-direction-guide.md` when this skill is active for a build, redesign, review, or implementation plan.