Separation Studio (specifically Version 2.2.4 as distributed by developer Jun He) is a specialized tool designed for Mac users to handle color separation and artwork generation, primarily for T-shirt production and screen printing.
Breaks the image down into Cyan, Magenta, Yellow, and Black channels. Separation Studio 2.2.4
Are you looking to use this for or for more complex simulated process work? Separation Studio Review Separation Studio (specifically Version 2