This is my attempt to create an easy and readable plasma theme which works with the most wallpapers (of mine ;o) ).
It is almost completely made from scratch (color config is from Androbit and the tray icons from default Air). Though there are several similar themes out there, I choosed to made this for a good tradeoff of simplicity, usability and not to much transparency.

Two of the screenshots are showing my PC with different wallpapers and widgets with compositing enabled. The third is my notebook with compositing disabled.

Some minor issues are going to be improved in further versions (as well as more widgets are added).