The Supplemental Wallpaper are one of the low hanging fruits for new contributors. Since the beginning, we have had the collecting process in the wiki, which isn't the best way. Many contributors have problems with that especcially the wiki cant thumbnailing bigger pictures. As we opened the voting process now to all Fedora contributors we got more problems. So it looks we need a new way and/or application for the whole process who makes it easier to contribute and to vote for the wallpapers. The hackfest shall find out if there is another way to organize the whole process.