For me delegations was fairly easy to understand, in a nutshell, you "borrow" events from a class to be implemented and triggered by your own class. For me, th

For me delegations was fairly easy to understand, in a nutshell, you "borrow" events from a class to be implemented and triggered by your own class. For me, the worse part of Objective-C was memory management, the rules are simple if you alloc you must dealloc, but memory leaking was always a problem, but now we have ARC and it free us from this. What I would really like to know, and I've never seen it in a book/tutorial explaining in detail, is, how do you skin or create costume buttons for your interface. How do you create/code an interface like http://dayoneapp.com/ http://dayoneapp.com/ ? I don't mean the graphics, but how to implement a template or design. If any of you know, it would be awesome ;)