wlsunset is a small utility that adjusts display color temperature on Wayland compositors that support the wlr-gamma-control-unstable-v1 protocol. It’s designed to shift the screen between day and night color temperatures automatically based on the current day and a specified latitude and longitude, while also supporting manual sunrise and sunset times for users who want fixed scheduling.
The program can control all outputs automatically or target specific outputs, and it also lets you tune both the color temperatures and gamma level. In addition to its automatic solar tracking, wlsunset supports runtime cycling between high temperature, low temperature, and automatic mode, making it a practical tool for reducing harsh screen tones during evening use on Wayland systems.
This is free and open source software.
Key Features
- Adjusts day and night display color temperature on Wayland compositors supporting
wlr-gamma-control-unstable-v1. - Calculates transition periods from the current day plus user-supplied latitude and longitude.
- Supports manually defined sunrise and sunset times with configurable animation duration.
- Lets you set both high and low color temperatures.
- Can control all outputs automatically or only selected outputs.
- Supports configurable gamma values.
- Allows runtime switching between high, low, and automatic temperature modes.
Website: github.com/kennylevinsen/wlsunset
Support:
Developer: Kenny Levinsen
License: MIT License
wlsunset is written in C. Learn C with our recommended free books and free tutorials.
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