Hi Alex, I put these together, hopefully I can clarify things a bit!
The fundamental difference is that, instead of letting users customize every aspect of the toolbars, from individual buttons to whether they appear on screen, I am proposing to make most of their titles constantly visible by default as dropdown headers.
In the current implementation, the right-click menu to activate each toolbar hides which functions are in what groups, and hover text is required to identify buttons. The proposed redesign keeps everything in the same place, with the tradeoff that, aside from Edit and Debug, many items live in dropdowns; although I tried to limit these to ones that don't require "instant" direct access.
I too see the value of common tools below the main menu with context-specific in windows, so this would not abandon that.
Thanks,
Phil