I wonder if the Generic RGB profile on Sierra is different to that in Mojave?When I open up display I see 14 color profiles to select from.
I tried every one for my 2013 and 2017 MBP using the GUI
and an open chrome session as content to find which one
looked the most pleasing.
I didn't use any scientific know how. For both MBP's, "Generic RGB Profile"
seemed the most pleasing so I have always used that profile. It may not
be cinematically correct but out of the preconfigured choices available to me,
this choice looks the best for both Sierra and Mavericks. I've been using
"Generic RGB Profile" since 2013.
Making a custom calibration file would be a disaster since I'm not
skilled at calibrating. When I select a white level that looks good to
my eyes, other colors go out of balance. All the shades selections
I am sure I would mess up as well.
The higher "saturation and contrast" of "Generic RGB Profile" is probably
what makes all the colors pop while giving me a sharp looking image.
This is probably not an accurate color profile, but it looks dazzling to me
and people still look like they have a normal skin tone.
Thanks for hanging in there with me Spectrum.
You can Open the profiles from the Display>Color tab and compare the stats between the two macOS versions.
If they are different it should be possible to copy across the Sierra profile to the Mojave Mac.
Additional profiles are stored in: HD/Library/ColorSync/Profiles/Displays, but I'm not sure where the default "GenericRGB" profile is stored...
EDIT: Found them. They are inside: System/Library/ColorSync/Profiles