I like this theme a lot, since it also darken the Top Sites page that I used for new tap. However, I find that the color of the texts in tab seems too bright white. Or maybe because the black in everything else were too pitch black to make everything else looks too bright. Personally, I would like if the pitch black were more grayish. But I understand that it's not the idea for this theme.

I very much like the theme. My only critique is that I don't like that I cannot see separators on the book marks bar. It just looks like an extra wide space. Fix and I'll change to 5*
EDIT: I don't see a bookmark specific component, perhaps its controlled by the "toolbar_vertical_separator"