I can see how inclusion is important, the success of the monthly themes let people express themselves in many forms, the actual icon format is a minor post-work issue that can be worked around. If people don't have the software their piece can be converted by some one who does? My expression of the challenge was supposed to devoid of a suggestion that might restrict going beyond ordinary preconceptions so that, that boundary could crossed. The theme could be 'computer interface, icons', however any submission could redefine what media the design process requires, almost all of the Art i've seen here, people used theme to produce their art with their chosen medium ( including but not restricted to computer programs) then submit that art, so removing the format restrictions might increase the participation. I'd Appreciate your feedback.