Minimized stack color
When you minimize a Part stack, say the bottom one or the editor stack you get this http://snag.gy/k1z82.jpg. I'm on Win 7,
Same bug here, I'm on Windows 7 too.
I don't tink this is OS related: I've the same on Mac OS (Lion). I suppose this view has not been themed. (FIY, the console has also a white background.)
I'm affected by this as well (Ubuntu Precise, Eclipse 4.2 SR1).
The scroll bars are not themed either.

The perspective bar IS themed though.

The scroll bar,console,table head row colors under "Problems" etc are not themed either.

I have the same issue on Ubuntu + KDE Dark Theme. But I do not have the issue with scroll bars. If the minimised stack was to be fixed, it would have been the perfect theme for me.