I can feel it! It is a good idea, I write documentation today!
From: http://cpntools.org/cpn2000/callback_messages#remove_label_command_11
I’m also proud of command 4:
(r, g, b for foreground color (1) and background (2); values 0-255; any value < 0 is ignored; most combinations will lead to some sort of brown, just like when mixing colors in real life)