Guide: design systems

The essentials guides show how to write components and pages. These pages are for the people who own a design system and use Tessera to enforce it.

• Token architecture: primitive, semantic and component tokens, and why the tiers exist.
• Theming, density and multiple brands: themes as data attributes.
• Enforcement: errors, the baseline, exceptions and severity.
• Accessibility: what generated tests cover and what they do not.
• Designing contracts: what belongs in a contract.
• Extending and ejecting: wrapping, tessera eject and forkedFrom.
• Versioning and deprecation: since, deprecated and renamedFrom.

Not everything is built yet. What is missing (a deprecation window, a playground, and the menu, tabs, listbox and tooltip behaviors) is listed on the roadmap so you can see what to expect and what not to rely on.