Complex Layout:Toolbar Left Center Right

Build 4539 on claude/focused-brahmagupta-9pqdlm
Reviewing disabled
Baseline History
Build 45394e345ea
Current build. There are unaccepted changes, so build 4086 is still the baseline.
Build 37797b42bd6
Accepted by Andrey Yamanov.
Build 31797984070
Auto-accepted
Commenting is disabled because there's a newer build on this branch