If you have a color_texture, you can substract the color of that texture with a color_math node and add a new color with another color_math node or color_ramp node. Please see this thread for more info: http://www.renderosity.com/mod/forumpro/showthread.php?thread_id=2689018 You might also want to have a look at a couple of links in the Material room, Nodes and Shaders Sticky on changing hair colors: http://www.renderosity.com/mod/forumpro/showthread.php?thread_id=2722867

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