You can lock individual colors so that you cannot remove or change them when changing palettes or when reducing the number of colors in a palette. If you switch to another palette after colors have been locked, locked colors are added to the new palette.

To lock a selected color, do one of the following:

To unlock a color:

  1. Select a locked color in the Optimize panel color table.
  2. Click the Lock button in the Optimize panel, or right-click (Windows) or Control-click (Macintosh) the color swatch and select Lock Color.

To unlock all colors: