Well, don't use mac then, use windows, also you can use this software if you use windows, to tweaking the color when in game: https://www.majorgeeks.com/files/details/gamma_panel.html
to apply it on cod 4, on console: r_fullscreen 0, restart the game
open
gamma pannel,and just tweaking the color through the gamma panel software, you know what, I use nvidia color setting, somehow what I just change cod 4 feels like fortnite, it work on creek nite.