This page contains a list of things left to do for KXStudio.
Tasks for common people (not Team restricted):
Work has already been done for this, but it's still far from finished.
The current theme uses the solidity-gtk3 engine.
It's available in the latest KXStudio Artwork release.
kxstudio-menu has been proven to work on Gnome2, KDE3, KDE4 and XFCE4.
It may not work on LXDE, needs testing (any LXDE users here?).