To change the polygon interior, line, text, or window background color for a graphics image, select the appropriate configuration options from the Picture Preferences dialog box. By adjusting the percentages of the base or combined colors, you can change the colors of a graphics image. This is useful for achieving more suitable shades of gray when printing or for enhancing the visual appearance of the screen display.
Colors can also be specified in the graphics protocol string using the color operand values with the appropriate attribute commands.
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