Color palette

Each color you'll use has it's own index number you use to reference the number, and GraphX uses an 8-bit color palette, meaning you have 256 unique colors (numbers 0 through 255). The default palette is the xLIBC palette, as shown below, with the default colors and their corresponding index number (in both decimal and hexadecimal):

You can find the full image here. You will use the index numbers in every command that asks for a color. You can set your own color palette by using the SetPalette( or det(4 command. For creating a custom palette, you have to hand this function a pointer to a string with 256*2 bytes (each color is worth 2 bytes). If you wish to reset the palette back to its default after setting your own, you can use SetDefaultPalette( or det(3).