Everything you can create or import in RSG can have color-text, rules, graphic objects, images. But that's worthwhile only if the color can be transformed accurately into printable color separations. On screen, all objects appear in RGB (red, green, blue) colors. To make color separations for printing, the colors must be converted to CMYK (cyan, magenta, yellow, black). RSG's color separator uses the CIE color space model, the professional pre-press standard for describing color. The CIE conversion process selects the nearest possible printable colors to those displayed on screen, giving the greatest color accuracy and repeatability to documents separated with RSG.