QA:Backwards Compat Grid

Build 507 on size-token-rename
1200px
Reviewing disabled
The baseline is shorter than the new snapshot (1196x756 to 1196x764).
Baseline History
Build 507eb7ad12
Current build. There are unaccepted changes, so build 501 is still the baseline.
Build 501549c550 current baseline
Accepted by Zhihao Cui.
Commenting is disabled because there's a newer build on this branch