KvadrantRadioButton
fun KvadrantRadioButton(selected: Boolean, onClick: () -> Unit, modifier: Modifier = Modifier, label: String? = null, size: Dp = BOX, enabled: Boolean = true, cyrillic: FontFamily? = null)
The phone's radio button: a 32 px ring with a 3 px stroke and a 16 px dot — exactly half — both in the foreground colour, on a transparent fill. Held down it takes KvadrantColors.checkBoxPressed and KvadrantColors.checkBoxPressedBorder — not the accent.