Top 5 color-temperature open source projects

Redshift adjusts the color temperature of your screen according to your surroundings. This may help your eyes hurt less if you are working in front of the screen at night.

A no-frills GUI for the excellent Redshift, with some optional OS hotkeys

This AppDaemon app progressively changes the brightness and color temperature of lights over the course of the day. This app also uses change thresholds to ignore lights that have been manually adjusted.

f.lux-like temp adjustments on IKEA trådfri 💡

GradientSlider is a UIControl subclass which is similar to UISlider, but with a linear gradient coloring the slider’s track. Useful for creating color pickers. Initially fork of https://github.com/jonhull/GradientSlider rewritten to Obj-C