The SVG files are from:

http://kde-look.org/content/show.php/mathematics+functions?content=120999
http://kde-look.org/content/show.php/Palm?content=37708
http://kde-look.org/content/show.php/20-min+work?content=102251
http://kde-look.org/content/show.php/SamuraiSVG?content=33041

