Contone is short for "continuous tone". The term Contone is most commonly used in relation to bitmaps. A bitmap is a contone bitmap when all of the colors used in it are varying mixtures of two colors. For instance, a grayscale bitmap is a contone bitmap because all the colors in it are a mixture of black and white. You can change the two colors of contone bitmap fills by selecting the fill handles and changing their color in the usual ways. You can give a bitmap an old-fashioned sepia look by setting one contone color to dark brown and the other to a yellow-creamy color. For more details, see Changing bitmap palettes.