So cute. You cannot lose with Nyan Cat.

One little nitpick critique - I wish the colour of the text on the tabs that are not being viewed was a tad bit brighter/lighter against the background. It doesn't contrast as much as I would like on one of my monitors that naturally shows everything a tiny bit duller, and I cannot adjust the monitor to be any brighter.

But this isn't enough to detract from this theme getting any less than 5 stars.