To schedule Night Light so it turns on automatically, select Start > Settings > System > Display > Night light > Night light settings.

Shifty is described as 'Was made to expand the capabilities of the built in Night Shift feature in macOS. You can disable Night Shift for specific apps and custom time periods. It also provides easy access to a slider to fine tune your color temperature' and is a color temperature tool in the os & utilities category. There are more than 10 alternatives to Shifty for a variety of platforms, including Windows, Linux, Mac, Wayland and Android apps. The best Shifty alternative is f.lux, which is free. Other great apps like Shifty are Redshift, LightBulb, Red Moon and RedshiftGUI.
To schedule Night Light so it turns on automatically, select Start > Settings > System > Display > Night light > Night light settings.

CF.lumen - don't let your phone blind you! CF.lumen changes the colors of your Android device's display based on the position of the sun. With the default settings, your display will get a warmer tint (lower color temperature) when the sun is down, to look more like indoo.

Free software for eye protection and more! It protects your eyes while you are working on the computer. Eye Saver has three main functions: blue light filter; eliminates the invisible flickering of the display backlight; reminds you to take breaks;



Kumux is a dynamic circadian color scheme for code editors and other software. It adjust color temperature, color hues, contrast and brightness levels throughout the day based on the position of the sun.

Trouble Sleeping? Device screen too bright even on the lowest brightness setting? Want to give your phone a warm look instead of that eye straining blue gaze you see at night? EasyEyes is the solution. By changing your device's color temperature, EasyEyes reduces eye strain...




Setting the color temp of the screen really only requires about 40 lines of C (80 or so all inclusive). sct is a crude utility which does roughly that. I’d say exactly that, but some of the calculations aren’t actually exact.
SunshinePal is your daily sunlight companion designed to help you track your exposure, set healthy goals, and reconnect with nature for better sleep and mood.




Small GTK GUI application to set contrast, brightness and gamma for wayland compositors which support the wlr-gamma-control protocol extension. Basically this is the example from here: https://github.com/swaywm/wlroots/blob/master/examples/gamma-control.

EyeAway is a beautiful, privacy-first macOS app that helps reduce digital eye strain using the proven 20-20-20 rule. Every 20 minutes, look 20 feet away for 20 seconds - your eyes will thank you.



