Outcoloring modes are similar to incoloring modes, but indicate how to display the areas outside the set instead. As with incoloring modes, the value of the latest orbit can be used to determine the color of each pixel, but the default is to use the number of iterations needed for the value at that point to become recognisably divergent as the color.
The tutorial on outcoloring has more information and examples.
The cryptic names of the modes are mathematical formulae, where iter means the number of iterations required for the value to become recognisably divergent, real means the real part of the latest orbit, and imag means the imaginary part. binary decomposition uses a different color when the imaginary part of the orbit is lower than zero, and smooth attempts to remove stripes and discontinuities. Also, truecolor outcoloring modes are available, that display one value in each of the red, blue and green color planes (or, for some modes, in each of the hue, saturation and value planes).
In the scripting language, the outcoloring mode is specified by one of the following integers:
True-color outcoloring mode. To set exact parameters for truecolor coloring use ''outtcoloring''.
Available as: command line option, command