This list was created by Rogier Koppejan during his computer science studies at the University of Amsterdam. He hosted this page on his university website. To retain this collection after discontinuation of his account, he handed it over to me. This theme is called "Amsterdam" and has been created by Rogier Koppejan. It's based on Dresden but with custom colors. You can download it here. Sylvain Bouveret has built an alternative beamer theme called progressbar, for more information, see his website.