xcm

Color management CLI application. Allows setting arbitrary color transformation matrix, saturation, degamma, preset and custom regamma values.

nimble install xcm

Required dependencies are x11, xrandr and libdrm.

xcm saturation 2
xcm regamma 1 2 3
xcm degamma linear
xcm matrix 0 0 0 1 1 0 0 0 1

CLI interface is using cligen, so you can abbreviate any command and option like this:

xcm s 2
xcm d l