stillcolor making screen sensitivity worse

[tilda-swintian]

Hi! So, alas, I tried using stillcolor on my partner’s laptop, and it has made the screen impossible to look at for me — my headaches and generally dizziness have gotten a lot worse. I tried re-enabling temporal dithering and deleting the program, but the screen is still not working for me. Is there anything else I can do? Is there anything else stillcolor does to the system settings?

Thank you so much! I appreciate what you’ve done here, even if it didn’t work for me!!

[aiaf]

Hello, Stillcolor toggles a single flag called enableDither on the display driver. It disables Apple's GPU/DCP-based spatio-temporal dither that gets sent to all displays.

If you uninstall the app and restart your Mac, Stillcolor no longer has any effect, and all driver flags go back to their default values.

[fuweichin]

When disabled dithering, I saw pinky "water spots" everywhere on white screen / white background (like pools distributed on wetlands). I tried wiping it with alcohol disinfectant but it doesn't help, solved the problem by unchecking "Disable Dithering" in Stillcolor.

MBP 16" M3 Max
macOS Sequoia 15.7
Stillcolor 1.1