> Decreasing dynamic range, increasing the contrast, is trivial.
How would I do this on MacOS or Windows?
Most people have one adjustment easily available--the screen brightness setting. This setting can decrease the contrast of pure black/white text, but it cannot increase the contrast of off-black/white text. Same with the Night Light setting on Windows 11.
Ideally you'd create a proper icc profile for your monitor. The ideal way is to use a calibration device, but both OS have a wizard where you can manually adjust contrast and brightness and generate a profile out of that.
This can be used to both increase or decrease contrast.
How would I do this on MacOS or Windows?
Most people have one adjustment easily available--the screen brightness setting. This setting can decrease the contrast of pure black/white text, but it cannot increase the contrast of off-black/white text. Same with the Night Light setting on Windows 11.