I only ported it to windows and tweaked it a little bit. The credit goes to the artist Jared Tarbell and the programmers Mike Kershaw and Jamie Zawinski.
If you've downloaded the substrate screensaver for windows from www.fredstober.de/download/index.html please update to the latest version. There were some color problems in the previous version which are now fixed.
If you notice any bugs/problems/missing features please report them at [email protected]