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I've had a surprising number of requests for a collection of watercolor-style brushes for Adobe Photoshop. But with the limitations of Photoshop's paint engine, that's a bit of a trick. Unlike programs like Corel Painter and Synthetik Studio Artist, Photoshop doesn't give you the ability to create anything that truly behaves like wet media with spreading, smearing and diffusing effects. Nevertheless, we can get part way there.