We can avoid some allocations in LocalDefaultSystemAppearance when a CSS color is in the system color cache. <rdar://problem/50056756>
Created attachment 368043 [details] Patch
Comment on attachment 368043 [details] Patch Clearing flags on attachment: 368043 Committed r244554: <https://trac.webkit.org/changeset/244554>
All reviewed patches have been landed. Closing bug.