Kubuntu is my favorite OS. After Feisty's release and after reading some feedback on the Kubuntu feedback wiki suggesting fresh updates to the default look and feel, I thought I'd dabble for a bit and come up with a few suggestions.
This is one of my suggestions so far. The Color scheme is included.
Polyester is a nice style, however I think qtcurve does glassy widgets with a bit more polish and consistency. The settings for qtcurve is included.
Perhaps others can come up with suggestions as well.