In V18, Tool Windows "Find Symbol" and "Open" would close when you press escape.
In v19 they do not.
Typical workflow:
press Alt-S, Y (Search, Find Symbol).
"Find Symbol" tool window appears (floating on top of everything else).
Type something, don't find what I like.
Press ESC.
"Find Symbol" closes and I continue working.
In v19, ESC just moves focus back to the edit window.
The "list-buffers" window, does close with ESC, just like in V18.
They look the same, yet they behave differently.
Also, the context menu for tool windows is wierd.
In V18, we had Dockable, Floating, AutoHide, Hide. ToolBars->, ToolWindows->.
In V19, we have Dockable, Float, Dock, Hide, Duplicate.
#1: "Float" is enabled / disabled instead of unchecked and checked. (V18checked == V19 greyed out/disabled) This is wierd ui.
V19 Float/Dock seems to be the same functionality as V18Floating (checked, unchecked).
#2: Why were ToolBars-> and ToolWindows-> removed? Can we have them back?
#3: I don't care for AutoHide, but I know some people like parts of their UI magically sliding in and out, I suspect some will miss this.