Colour
Draw a random colour.
Logic: A combination of RGB values is picked at random.
The pool of possible combinations is defined by the Steps parameter. Steps divide the RGB values range (0-255) by a specified number. For example when 2 steps are selected the RGB value is rolled from the poll of 0 and 255, for 3 steps there are 0, 128 and 255, for 4 steps there are 0, 85, 170, 255 and so on.