Rename AppHighlight group to QuickNote to correctly reflect feature.
Created attachment 431144 [details] Patch
Created attachment 431160 [details] Patch
Created attachment 431202 [details] Patch for landing
Committed r278767 (238726@main): <https://commits.webkit.org/238726@main> All reviewed patches have been landed. Closing bug and clearing flags on attachment 431202 [details].
<rdar://problem/79206013>