There is the issue of Luma Mix, and it might be that Kevin has changed two settings for his project:
One is "Luminance mixer defaults to zero" and the other is "Use S-curve for Contrast", which give you more control over individual channels (at some risk).
Professional Color Grading Techniques in DaVinci Resolve
in The Art of Color Grading
· Edited by Meagan Margaret Thomas
There is the issue of Luma Mix, and it might be that Kevin has changed two settings for his project:
One is "Luminance mixer defaults to zero" and the other is "Use S-curve for Contrast", which give you more control over individual channels (at some risk).