ModeSelector:With Single Viewport Error

Build 1636 on dark-mode-adjustments
Dark
Reviewing disabled
Baseline History
Build 163657a015c current baseline
Current build. Accepted by Dominic Nguyen.
Build 16289f0fd9b
Ancestor build. There were unaccepted changes, so this was not used as a baseline.
Build 162727b15f7
Inherited baseline identical to build 1559
Build 1559385705b
Accepted by Dominic Nguyen.
Build 931b1dae5b
Accepted by Tom Coleman.
Build 87901c1d31
Accepted by Gert Hengeveld.
Commenting is disabled because there's a newer build on this branch