Rezlooks-clear is a GTK theme based on the Rezlooks engine.
I used the Clearlooks colors and updated the theme to use the same size settings as Rezlooks-pastelgreen and -candy as I didn't like the colors from the other Rezlooks themes that much.
Rezlooks is a GTK theme engine based on the cairo-enabled CVS Clearlooks engine code.
It basically strips all the stuff from clearlooks that I don't like. The lack of rounded corners is probably the most obvious change, but there are various other smaller changes too. It should also be faster than clearlooks from cvs because in order to make my changes I stripped down the code somewhat.