How can I steal a Tumblr Theme?

I know i know it sounds wrong but I am going to write who made the layout since I am a graphic designer but don’t know code and until I learn will not steal or “borrow” again. Or if anyone knows if there is a sort of Tumblr layout generator were i can upload my own images sort of like MySpace or a layout stealer like myspace. Thanks.

http://www.freecodesource.com/index.php?page=myspacegenerators/index
http://www.myspacelayoutspy.com/layout_stealer.php