Grdient Themes

I've changed Ozone Themes to Gradient Themes. The first theme out is Gradient iCool (Fig.1), which is the successor of Ozone Black x Blue. First, I greatly appreciate those who has downloaded this theme. Now it has reached over 700 downloads for a week hosted (i.e. 100 downloads per day!)
Just tell me anything you feel about this theme here. Feel free also to post comments on the Mozilla Addons page.

Fig. 1