I would like to subclass the UINavigationController to get some more freedom in regards to the appearance of the controller.
I have some graphics for the different p
Now you can subclass UINavigationController, see updated documentation:
The UINavigationController class implements a specialized view controller that manages the navigation of hierarchical content. This navigation interface makes it possible to present your data efficiently and also makes it easier for the user to navigate that content. This class is generally used as-is but may be subclassed in iOS 6 and later.
UINavigationController Class Reference