- Segmented controls slide a raised face along a track, as macOS, GNOME and Windows 11 draw them, and press one of a row of joined buttons on Mac OS X 10.6 and Windows 7
- A segmented control is a radio group: Tab enters at its choice and arrows pick the one beside it
- Unchecked check boxes show their edge on light backgrounds

Assisted-by: claude-opus-5.5