Rated 4 out of 5 stars

Without glass (for example, on WinXP) there is a problem: Active tab is visually hardly distinguishable from inactive tabs. Also, tabs looks worse than on Fx3.7 mockups for WinXP themes.
Yes, I know it is extremely difficult to paint proper semitransparent PNG tabs, which would look good with glass and without glass (at the same time). So, I suggest SpewBoy an easier way: create separate theme for users without vista/7 glass.
Anyway, thank you for this theme.

This review is for a previous version of the add-on (0.4.3).