Allow optional overriding of panel (in panel layout) widget styles#9

bu5hm4nn wants to merge 9 commits into

mikedilger:gossipmikedilger/egui:gossipfrom

bu5hm4nn:feature/allow-panel-visuals-overridebu5hm4nn/egui:feature/allow-panel-visuals-overrideCopy head branch name to clipboard