checkBoxPressed

PhoneRadioCheckBoxPressedColor — what fills a check box or a radio ring while it is held.

Not the accent, and this used to be. Research §1.12 recorded the accent's role as "the pressed state, and only that", read off the name PhoneRadioCheckBoxPressedBrush without resolving it. Resolved, it is #FFFFFFFF in the dark theme and #00000000 — fully transparent — in the light one. Exactly one colour differs between the twenty accent dictionaries, and it is PhoneAccentColor; the accent marks selection and progress, never touch.