One Weird Trick to Lose Size
Ben Sandofsky

Another option would be to use something like PaintCode, which generates Core Graphics drawing calls from vector art. Slight code size increase, but saves on having to generate potentially a great many image variations all because a designer tweaked an icon. And PaintCode can generate the code so that it takes parameters you can specify at run time (size, color, and just about anything else you could think of).

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