Rich Text Editor:Placeholder State Theme Matrix

Build 8851 on users/aagash/mention-popup-in-editor
1200px
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Baseline History
Build 88510f167e7
Current build. There are unaccepted changes, so build 8735 is still the baseline.
Build 87351f12054 current baseline
Accepted by Jesse Attas.
Build 78728cd6a46
Auto-accepted
Build 7535b9b5a20
Accepted by Jesse Attas.
Build 73084ca3caa
Accepted by Vivin Krishna.
Commenting is disabled because there's a newer build on this branch