Menu entry located in Control Panel > Hardware > Redshift color temperature adjustmentDescription
Redshiftgui changes the color temperature of your monitor to better match that of your surrounding. This means a cooler temperature during daytime (due to natural lighting), and a warmer temperature at night (due to indoor lighting).
redshiftGUI-0.2.1.pet
libxcb-randr0_1.8.1-1ubuntu0.2_i386.pet