Clover: the New Subpage arrow's grey looked muddy on a purple highlight.
Neutral parts drawn over the row, as the subpage arrow, the microphone's stand
and the outer edges of pages, sheets and windows, paint currentColor at an
opacity, following the label's colour on light, dark and highlighted rows.
What lies on a sheet, and coloured parts, keep their colours.

Assisted-by: claude-opus-5.5