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Stitch's DESIGN.md format has been open-sourced

·2026.04.22 09:00

Key point

A draft specification for Stitch's DESIGN.md has been open-sourced.

Details

Stitch's DESIGN.md allows design rules to be exported and imported between projects, so you don't have to describe your design system from scratch every time. Through this, Stitch can understand the intent behind elements like colors and generate UI that fits the brand.

What's been released is a draft specification of DESIGN.md, aimed at being usable across any platform rather than being tied to a single tool. AI agents can precisely understand the purpose of each color and validate the chosen design against WCAG accessibility rules.

David East of Google Labs explains this shared visual language in a recent video, and users can generate the file directly in Stitch or contribute on GitHub.

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