Text:Custom typography

Build 842 on feat/FX-2067--ios-typography
1200px
Reviewing disabled
The baseline is shorter than the new snapshot (1200x532 to 1200x577).
Baseline History
Build 842f9abc45
Current build. There are unaccepted changes, so build 820 is still the baseline.
Commenting is disabled because there's a newer build on this branch