rails-design-profiles

https://github.com/paladini/rails-design-profiles

Rails Design Profiles keeps public DESIGN.md references separate from executable design tokens. Install an openly licensed reference, review it with your team or AI tools, and define a versioned YAML token profile. The Rails helper emits the active profile as --rdp-* CSS custom properties, and Rails tasks switch the application-wide profile without copying third-party CSS, assets, or branding.