I've just modified and enlarged the emerge.theme for gentoo to work with Arch Linux (pacman).
Test it and enjoy it!
The Download provides a *.skz file, which only works with superkaramba >=-0.37 (afaik).
For all others (<=0.36), please download the *.skz file, then rename it to something.zip and unpack it with unzip.
Then start the theme file with superkaramba as usual.