Animations for the Breeze style

Didn’t even realize the forum had moved: Must admit the Discuss feels much nicer. Figured I’d start with a detail that’s been on my mind recently as I was surprised it was never addressed yet.

We have the Breeze style for so many years now… but in all this time there has never been a basic animation system for theme elements. Back in the days of Oxygen I enjoyed the subtle fading effect when hovering over buttons or selections: With breeze the selection appears and disappears instantly as you click on things or move the mouse cursor into or out of an item.

Is there any reason to oppose a setting in both the Application Style and Window Decoration (KWin) for controlling animation speed? It can stay 0 by default to disable, but if you want set it to something like 100ms to make all hover and selection effects fade over that duration.