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A CAKeyframeAnimation subclass that lets you quickly and easily set a number of bounces, and start and end values, and creates an animation for you.
Objective-Shorthand is a set of categories that make long things in Objective-C short. Additions welcome.
Instant Cocoa is a framework for making iOS apps.
SKInnerShadowLayer is a CAGradientLayer subclass that adds properties to create an inner shadow on a given layer.
This is a category on NSArray that finds the indexes of the longest common subsequence with another array.