Color bar operations (WarpColor/WeftColor): Always color-only. Never touch structure or thickness. Sync
checkboxes are completely ignored.
Structure operations (Warp/Weft): This is where Sync matters:
- Sync Color ON → operation also affects colors alongside structure
- Sync Color OFF → operation only affects structure, colors untouched
- Sync Thickness ON → operation also affects thickness alongside structure
- Sync Thickness OFF → thickness untouched
This is one-directional — sync only flows FROM structure TO color/thickness, never the reverse.
