KvMap:Advanced Animation

Build 2537 on main
Reviewing disabled
Baseline History
Build 25375ed28ee
Current build. There are unaccepted changes, so build 2536 is still the baseline.
Build 25052a0061e
Accepted by Christian Bedón.
Build 24917c00db4
Accepted by Joshua Kiwiet-Pantaleoni.
Build 2488588d764
Accepted by Joshua Kiwiet-Pantaleoni.
Commenting is disabled because there's a newer build on this branch