Working some some video related stuff and in the system preferences for display the profiles of the MacBook Pro XDR display include a check box called "Apply System Gamma Boost" some of these profiles have it check (HDTV, Rec709) which an adjustment of 2.2
This appears to darken the screen (crush the shadows) and actually makes the screen look incorrect compared to having it unchecked (which now looks fairly close to a 709 reference display)
I can find no documentation here on what that check box is supposed to do
Can anyone point me in the right direction? Docs or advise? Right now it looks like it should be 'off' a see no benefit to having it on...
thanks Paul
