TA grille paint

[Harley]

I'm trying to figure out the correct paint layout on a ta grille. The area around the center section is what i have questions about. I've looked at several pictures  and noticed that some grilles surrounds are painted black completely and others leave one rib unpainted and others leave two ribs unpainted. What is the correct paint layout??  Thanks!  Harley

[Rbob]

This is my original T/A Grille:

[Burdar]

This is a link to Dave Walden's Challenger.  There is a close-up picture of the grill and how it should be painted.
https://www.moparaction.com/2016/03/16/pop/

[Harley]

Thanks for the pictures!