The "Testing the design" section of the README and of the Boost skill list the cleared breakpoints and scales with their M3 replacement, the arbitrary-colour check, and the two opt-in checks for the absolutes and for opacity on ink. Plan: docs/plans/material-3-alignment.md, step 9 (core C4a, C13). Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01Qwx5USif3wFFmxtHg5U1g9