StillColor for Mac Disables Temporal Dithering to Reduce Eye Strain and Flicker

Some Mac users who are sensitive to eye strain and PWM display flickering have turned to a small free utility called StillColor to modify how MacOS renders colors on their screen. The StillColor tool has a feature that can disable something called “temporal dithering”, a usually imperceptible display technique that alternates pixel colors at the displays refresh rate, tricking the eyes into experiencing a wider range of colors than are truly present.
This temporal dithering feature has been reported to cause eye strain, headaches, fatigue, nausea, difficulty focusing, and various other physical symptoms, in users who are sensitive to this technology.
And that’s where the Stillcolor app for Mac comes in, which allows you to disable the color dithering feature, potentially relieving eye strain and fatigue symptoms for users who are impacted by the flickering color dithering feature.



















