The Color Specifications dialog lists all the colors of objects created in RSG-text, rules, rectangles, ovals, polygons and picture borders (colors within picture blocks are not listed)-and lets you specify whether each color should be separated as a process color or as a spot color.
Initially all colors are set to process separation. You can change any color to be spot-color separated by clicking on it to select it and then clicking the Spot radio button. You can similarly change spot-separated colors to be process-separated.
Spot-separated colors appear in the Color Plate Selector dialog box, together with the four process colors: 
see Color Plate Selector dialog box later in this section.