Onboarding:Running First Test

Build 1592 on dark-mode-adjustments
Bottom 2-up
Reviewing disabled
Baseline History
Build 15929b3b339
Current build. There are unaccepted changes, so build 1573 is still the baseline.
Build 1573385705b current baseline
Accepted by Dominic Nguyen.
Build 1436c8226fa
Accepted by Matthew Weeks.
Build 1285337cc84
Accepted by Matthew Weeks.
Build 890530f1d0
Accepted by Gert Hengeveld.
Commenting is disabled because there's a newer build on this branch