This was a gift on new year for my eldest brother! On the drawing is human version of Windows 7, not mine, it's... Official one? I don't remember much which OS tans are official and which are fan made. ><" Anyway the thing is my brother is interested in computers, programs, and how it all works (he's so smart <3), plus he likes anime, so i could't think of anything beside this tan on command line. :>