It seems like more and more OS X apps these days are doing all kinds of fancy drawing stuff for custom controls. Apps like Twitterific, Things, EventBox, Versions just to name a few....

So basically I'm looking for any information on how to get started doing this kind of thing. Not sure if it is just done by subclassing controls and using custom drawing or if it is something entirely different.

Any help is greatly appreciated. THanks!

objective-c cocoa macos interface-builder
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