A command-line tool that lets you change gamma in GNOME and Cinnamon (with Wayland). You can also adjust contrast and brightness. It works by creating a color profile with the VCGT table, so that changes are persistent and don't interfere with other settings like night light.
gnome
contrast
brightness
cinnamon
gamma
icc-profile
wayland
vcgt
change-gamma
gamma-adjustments
gnome-gamma
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Updated
Mar 9, 2024 - Python