These textures are made by Kuroto 'ai' Robert http://www.kurotorobert.com The author gave permission to use and redistribute them under the conditions of the Creative Commons Attribution-Share Alike 3.0 Unported license. http://creativecommons.org/licenses/by-sa/3.0/ These textures were originally licensed under the GPL. From the original README: License is GPL. Feel free to use them how you see fit. I know these are not the best but better than nothing I suppose. If you have any questions, requests or other go to the URL above for contact info.