Google open-sources Stitch's DESIGN.md format

Google Labs has open-sourced the draft specification for DESIGN.md, a format used in its Stitch tool for managing design rules. This initiative allows the design system's logic to be shared across different platforms and tools, enabling AI agents to understand design intent, color usage, and validate against accessibility standards like WCAG. By making DESIGN.md open-source, Google aims to foster broader adoption and collaboration, allowing developers to export and import design rules without starting from scratch and ensuring AI-generated interfaces align with brand guidelines.