184320 2018-04-04 16:40:08 -0700 WebCore::LocalDefaultSystemAppearance talks to NSApp 2018-04-19 13:09:54 -0700 1 1 1 Unclassified WebKit WebCore Misc. WebKit Nightly Build Unspecified Unspecified NEW https://bugs.webkit.org/show_bug.cgi?id=184322 InRadar P2 Normal --- 1 bfulgham webkit-unassigned bfulgham pvollan timothy webkit-bug-importer oldest_to_newest 1411939 0 bfulgham 2018-04-04 16:40:08 -0700 WebCore::LocalDefaultSystemAppearance talks to NSApp to get information about the current system appearance (colors, fonts, etc.). This code path is getting hit while computing styles in the WebContent process. It would be nice if we could either broker these calls to the UIProcess, or perhaps cache these values on the WebProcess side, updating when user settings change. 1411940 1 webkit-bug-importer 2018-04-04 16:40:39 -0700 <rdar://problem/39193372> 1416033 2 timothy 2018-04-19 13:09:54 -0700 We do cache the system colors, for each color, when it is not in the cache yet. The cache is cleared when the user appearance settings change. https://trac.webkit.org/browser/webkit/trunk/Source/WebCore/rendering/RenderThemeMac.mm#L453