And again a "nice, but ..." Rated 4 out of 5 stars
Hi, for TB 5 the black office is my favorite style. But I recognized some little white artifacts around most of the main icons. I made a screenshot you can look at http://www.dreibuchstaben.de/tb-icons.jpg - focus at the "back" and "forward" darts, "delete", "forward mail". "Junk" icon is jumping at mouse over.
Now Version 1.6.6 - still good looking and works fine with TB 6.0.1., but buttons/icons are not with clean design yet.