I find this so interesting mainly as a programmer, to have to think about how they'd have to rethink age-old rendering and interaction models for form controls

I find this so interesting mainly as a programmer, to have to think about how they'd have to rethink age-old rendering and interaction models for form controls (rendering logic that's probably been in there for decades) and "flip" it in meaningful ways. This feels more substantial than right-to-left. I tried to search for the patch because I'm really curious as to exactly how much code had to be redone. If anyone has better luck than me, I'd love to see the overall ticket and patch. Update: I found this: https://github.com/WebKit/WebKit/commit/f65bcef60fd613c09d7ef738f581861415bfaff6#diff-1b9ea1eaae4df0e5cac6a1e3cb8f3da3d213111ee802a0cd1aca331cfc828d9b https://github.com/WebKit/WebKit/commit/f65bcef60fd613c09d7e... Yeah looks like stuff you'd expect, like changing heights to logical heights, changing "Right" to "end" (not to minimize the work, I'm still intimidated by the sheer thought of designing this), but really interesting.