Bad contrast reading tab names. Not terrible though.

I chose to use this theme because I love the colors and, when I download it and added it on, I liked the design. However, after I began to use Firefox, I was disappointed to find I hard time seeing the tabs. It's not the transparency, nor the overlapping layers. It is the color chosen for the text of the tabs. A much darker green or even black would be easier to see without disturbing the aesthetic I believe.