redshift
Adjust the color temperature of your screen according to your surroundings.
More information: http://jonls.dk/redshift.
- Turn on Redshift with a specific [t]emperature during day (e.g., 5700K) and at night (e.g., 3600K):
redshift -t 5700:3600
- Turn on Redshift with a manually specified custom [l]ocation:
redshift -l latitude:longitude
- Turn on Redshift with a specific screen [b]rightness during the day (e.g, 70%) and at night (e.g., 40%):
redshift -b 0.7:0.4
- Turn on Redshift with custom [g]amma levels (between 0 and 1):
redshift -g red:green:blue
- Turn on Redshift with a constant unchanging color temperature:
redshift -O temperature