Every currently active variable has an associated color legend that can be displayed in the Graphics Window. Color legends provide essential information about images that use parts colored by variable values (color fringes). Legends are particularly important if the image is to be viewed by others.

Legends are drawn as a vertical or horizontal color bar with associated variable values. The size and position of the color legend can be changed. This article discusses changing the appearance of color legends by modifying Annotation. To edit the color palette itself (change colors or change the mapping from variable values to colors) see Edit Color Palettes.