tldr/pages/common/gammastep.md

gammastep

Adjust the screen's color temperature according to the time of day. See also: redshift. More information: https://manned.org/gammastep.

• Turn on Gammastep with [t]emperature set to 5700k during the day and 3600k at night:

gammastep -t 5700:3600

• Turn on Gammastep with a manually specified custom [l]ocation:

gammastep -l {{latitude}}:{{longitude}}

• Turn on Gammastep with screen [b]rightness set to 70% during the day and 40% at night:

gammastep -b 0.7:0.4

• Turn on Gammastep with custom [g]amma levels (between 0 and 1):

gammastep -g {{red}}:{{green}}:{{blue}}

• Turn on Gammastep with a c[O]nstant unchanging color temperature:

gammastep -O {{temperature}}

• Reset temperature adjustments applied by Gammastep:

gammastep -x