Cross-Platform Token Compilation (Style Dictionary)

How do tokens stored in JSON become usable code across different programming languages?

Teams use an open-source build tool like Style Dictionary (created by Amazon). Style Dictionary ingests a single directory of JSON/YAML tokens and transforms them into native artifacts:

• For Web: CSS custom properties (:root { --color-bg-surface: #ffffff; }) or SCSS/TypeScript constants.
• For iOS: Swift structs (Color.surface) and Objective-C headers.
• For Android: XML resource files (@color/surface) and Jetpack Compose objects.
• For Flutter: Dart classes (AppColors.surface).

By automating this pipeline in CI/CD, a single token change pushed to Git builds and publishes new versioned packages for Web, iOS, and Android simultaneously.