Cycle colors are used in graph plots where the color is set to cycle through a set of colors. The colors are defined in a text file. If there is a file graphcyclecolors.txt in the preferences directory (
.comsol\v54 in your user directory), then it is used. Otherwise, 
/data/colors/graphcyclecolors.txt under the COMSOL Multiphysics installation directory is used.
 
    where R1, 
G1, and 
B1 are the RGB (red, green, and blue) values for the first color; 
R2, 
G2, and 
B2 are the RGB values for the second color; and so on. The range on the first row is the maximum value for an RGB component (
maxRGB is an integer value). That row is optional; it defaults to 255 if not set.