The Palette
tab (pictured below) is available for raster image files that use a fixed
color palette for display. This tab allows the user to see what colors
are in the palette as well as edit the color and/or description of each
color in the palette. This allows for easy replacement of one color with
another.
Users can also save the palette to a new file, to share with other users, or load an entirely new palette to use for the layer from an existing .PAL or .CLR file.