Why menu item styles split into a base treatment plus stackable modifiers
The question: The Menu Item Style control offered ten treatments, but Box and Highlight rendered from the identical fill rule, Pill was just Box with a rounder radius, and Fade only changed the resting opacity — something that would happily sit on top of any other style. We wanted to add premium treatments (a gliding indicator, a gradient underline, a marker swipe). Do we keep appending tiles to one flat picker, or is the list itself the wrong shape?
