- R1 sw COMPONENT_CATALOG §9: SWViewerHeaderButton is 32 x 48 in the trailing strip, 32 x 40 inside custom items
- R2 sw COMPOSITION_PATTERNS §7: open icon has only its own black outline, no frame border or face
- R3 sw VIEWER §2: open icon area 16 x 16 and button padding 0 12px 0 24px
- R4 docs/ai/MAINTAINING §1: sw ai files incl. FOOTER.md and examples A-J (G, I)
- R5 docs/ai/AI_GUIDE: center-graphic entries /reference and /style.css, synced to 4 package copies