This is a modified version of the KStatus Karamba theme which can be found here: http://kde-look.org/content/show.php?content=19827.
This is the work of DaBlade (I'm a 16 year old in Norway with no real life outside my computer=) with the help of a few people in #amaroK on Freenode and Joseph Farthing (methlabs.org).
The theme has the following changes:
-- All but two of the icons (not the amaroK control buttons) have been replaced with Crystal SVG 1.0 versions. The one that hasn't been changed at all is the modem one. It looks crystal-ish :)
The other is the XMMS/amaroK one. I found this one with the help of google. Not part of the crystal SVG collection. I think it looks cool..don't you? :)
-- All the XMMS functions have been replaced with amaroK functions.
Oh, and if you think that I've stolen karraskal's theme, that may be true, and if you feel like criticizing me for it, feel free to do so, but the GPL clearly states that people can build upon/improve the work of others.