This theme is based on the wallpaper "cube", from Marius.
You found it here(also a blue version):
Preview no.1: grey theme with one highlighted color (orig. "deep sky blue 3") with builtin "Plastic" wm and one wallpaper (copyright by owner, i don't modify it, BTW, thanks for your work!).
Preview no.2 : icon settings. In this way,icons will change to normal coloration on mouse over only. You have to do this mannualy! i have no script (maybe someone helps me?) just when you like standard grey icons.
Preview no.3: another color. (Just switch to your favorite color;-) ... blue for the boys, pink for the girls.. just trie around if you like it.
Or better maybe: you set two highlight colors, blue & orange ? just look here, on the Screenshots section:
I screen a shot there, Xcuse, one screenshot from this idea. English kill me... :-)
* After downloading the .gz file, extract all files in the directory you want, then "right click" on .kth file and "install..".
Hope someone like it.