Lumen - magic auto brightness based on screen contents. You control Lumen simply by using your brightness keys - it'll automatically learn your preferences.

Calise is described as 'A Python program that calculates ambient brightness and sets screen's correct backlight using a camera' and is a Screen Dimmer. There are more than 25 alternatives to Calise for a variety of platforms, including Windows, Mac, Linux, Android and Wayland apps. The best Calise alternative is f.lux, which is free. Other great apps like Calise are Redshift, LightBulb, Dimmer and RedshiftGUI.
Lumen - magic auto brightness based on screen contents. You control Lumen simply by using your brightness keys - it'll automatically learn your preferences.

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.





Away From Keyboard is an app that reduces eye strain with reminders to take a break.
