xcalib

Controls settings from the command line for computer monitors that support the Display Data Channel…

16 Alternatives To xcalib

Grade Hound

Helping students keep track of their grades and assignments

NightTone

NightTone is a commercial computer program that makes your screen more comfortable, healthier and enjoyable by shifting the colours of your display to a warmer and eye-friendly palette.

Nuclino Dark Mode

Experience a darker side of collaboration 😎

Owl

Owl is a light-weight Firefox add-on that gives webpages a dark background and dimmed colors.
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QuickGamma

monitor gamma calibration, monitor gamma correction, monitor gamma adjustment, adjust monitor gamma, calibrate monitor gamma, adjust monitor brightness and contrast, monitor gamma correction utility
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Stylus - User Styles Manager

Stylus is a userstyles editor and manager based on the source code of Stylish version 1.5.2.