The reviewer asked this run to look closely at it; no test exercised it. toolbar.css's primary recolour already excludes :disabled and [aria-disabled] so button.css's own disabled colour wins there — this pins that a disabled button in a standard toolbar resolves to the disabled formula, not primary, while an enabled sibling resolves to primary (plan step 36, navigation group). Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01Qwx5USif3wFFmxtHg5U1g9