Design Systems.

Scalable design system architecture and governance. Covers 10 sub-skills.

• Design Systems · 1 of 3

  Versioning & Governance

  Release notes for @acme/ds-button show: '1.4.2 → 1.4.3: fixed focus ring contrast on disabled state, no API changes.' Under SemVer, which segment was correctly bumped?

  APRE-RELEASE: focus fixes ship via pre-release tags before stableBPATCH: backwards-compatible bug fix with no API surface changeCMAJOR: any visual change to a component is a breaking releaseDMINOR: visual fixes count as new features added in a release

• Design Systems · 2 of 3

  Theming & Customization

  What is 'multi-brand theming' in design systems?

  ASupporting multiple color modes (light/dark)BCreating separate Figma files per brandCUsing different component libraries per brandDOne component library serving several brands

• Design Systems · 3 of 3

  Versioning & Governance

  In semantic versioning, when must you increment the MAJOR version?

  AWhen improving performance without changing behaviorBWhen adding a new optional prop to a componentCWhen fixing a CSS bug that does not change the APIDWhen introducing backward-incompatible API changes