easygamma

simple GUI for display gamma and brightness control, works on X11 and Wayland

Note: on wayland, only one app can control gamma at a time if gamma does not apply, check for a running wlsunset, gammastep, or similar

install from AUR

yay -S easygamma-git

build from source

arch based

#wayland
sudo pacman -S gtkmm3 cmake  wayland-protocols gcc libayatana-appindicator

#x11
sudo pacman -S gtkmm3 cmake gcc libayatana-appindicator

git clone https://github.com/jahamars/EasyGamma
cd EasyGamma
mkdir build && cd build
cmake ..
make
sudo make install

debian based

#wayland
sudo apt install libgtkmm-3.0-dev cmake libwayland-dev wayland-protocols g++ libayatana-appindicator3-dev

#x11
sudo apt install libgtkmm-3.0-dev cmake  g++ libayatana-appindicator3-dev

git clone https://github.com/jahamars/EasyGamma
cd EasyGamma
mkdir build && cd build
cmake ..
make
sudo make install

features

• presets: default, night, warm, cool, dim
• master slider to control all channels at once
• per-channel R/G/B sliders
• multi-monitor support
• settings saved to ~/.config/easygamma/settings.conf

requirements

Wayland gamma control requires a compositor that implements wlr-gamma-control-unstable-v1: Sway, Hyprland, river, and other wlroots-based compositors.