Hello, I am writing a framework to develop tile based RPGs in Pygame. I need graphics for examples, the tutorial and the "standard graphics library" to be distributed with the framework, but I haven't been able to find material under a Creative Commons license, or in the public domain. Most of the material in http://www.pygame.org/wiki/resources is ripped from RPGMaker or games.
The only material I've found so far is at http://rltiles.sourceforge.net/, some Nethack and Dungeon Crawl graphics, but that set is very limited. Does anyone know where to find more tilesets or charsets that I can distribute freely? Thank you in advance, Henrique