exactly, except that as far as i can tell you can just see the wallpaper through the boxes in your theme. that's not what i really mean, it's not alpha transparency. i have a draggable box with - to be precise - a fish as the background image. now this fish shall have the task icons on it, while you can still see the fish's colours. :)

(sorry if i'm mistaken, i'm still examining your theme :) )