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Design Knowledge Base

Community-maintained principles reviewed before publication and retrieved as Agent design constraints.

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Tag: fallbackReset all
2 published principles / 192 in library
Frontend Implementationbackground-texture / css

Background Texture CSS and Accessible Fallbacks

Background texture should enter as a secondary layer through tokens, CSS/SVG output, and fallback strategy while preserving readable UI in forced colors, print, mobile, and low-data conditions.

Background texture adds surface depth, brand tone, or redundant encoding; it should not steal information hierarchy. Production implementation must treat texture as a disable-able, compressible, replaceable surface layer.94%Frontend Implementationcss-color / oklch

CSS Color Spaces and Gamut Fallbacks

Modern CSS supports OKLCH, P3, and relative colors, but production tokens still need to handle sRGB, older tooling, screenshot tests, and third-party renderers.

Frontend color implementation must separate design source, modern CSS output, and compatibility fallback; browser support does not mean every toolchain supports the same syntax.93%