BTW, I saw that kdiff3 has a command line option to print to console all it’s settings, and to load them from a given file. This potentially could be a good solution to backup and change color schemes. However this feature seem to have a bug in the colors: all colors are presented with a single number instead of 3 numbers (R,G,B). So I can’t save the current colors, and won’t be able to load different colors…
The Color numbers looks like the first number from each color, i.e. Red only…