Sig's program/interest user boxes...

Hey all, Ok Im talking about in people's sig's on this website. I always seems like a bunch of rectangular boxes stacked on top of each other, with saying's in them like, Windows 7 User, Combat Arms User, Itunes user. Usually with a graphic under the writing of that particular program or interest. If you know what I'm talking about care to share how I do that? Is it something editied by coding? or is it just a program or something that does it? You can either reply here or pm me. Thanks Guys!

please /close this I am going to post it in a more relevent section. Thanks