Also called toggle button, radio, radio group, chip, filter chip
Filter chips above a panel of selected, unselected and disabled radio options over a procedural backdrop. (light)A row of filter chips with two selected, above a glass panel of selected, unselected and disabled radio options, over a zoomed night skyline and its waterline. (dark)
Spec
Material
lens (off) → solid accent or tint (on)
Profile
squircle
Geometry
capsule like button; radios 16–18 px circles
Bezel (px)
h/2
Displacement (px)
25
Blur (px)
0.5–1
Anatomy
glass capsule or small circle
label
States
off: clear glass
on: solid accent or tint
disabled: tinted flat at 45 %
Rules
On state must differ by colour AND weight/fill, not only rim brightness.