The new (build 813) borders around the tool window buttons (Project, Structure, CVS, ...) make the buttons much too big, esp. in the bottom area.
Screen estate is a rare resource, please don't waste it like that! How about using only separators between the buttons instead of borders all around them?!
The lines above and below the text are completely superfluous as there are already borders on the outer sides of the window as well as on the inner sides of the tool window bars.