thanks @NewDwarf, ive been following this intently. I just tried to new command. will report back tomorrow morning. Usually notice the dithering feeling then. Is there a way to check if the command was run in terminal?
Edit: just ran the command and rebooted and a swear the screen looks better/different running the same sRGB IEC61966-2.1 profile. Was wondering, in a P3/sRGB example image like this one https://webkit.org/blog-files/color-gamut/comparison.html. Obviously if I keep my sRGB IEC61966-2.1 profile I shouldn't be able to see the differences in the image. Now, if I run the command and set the profile to P3 display, should it still mimmic 8 bit color and prevent me from seeing the differences? When I it now, P3 profile and the above dithering command run and rebooted, im still seeing the differences in the images.
edit 2: I had previously disabled “csrutil disable” in recovery mode when trying the original method you posted. was wondering if I could re-enable “csrutil" after entering this command?