How to make the color of my navigation bar white on the home page, and black on all the others

Site URL: https://wrasse-maracas-c2pc.squarespace.com/config/

I like the white on the homepage so I can see it, but when i click on portfolio, about, or press you cant see it. Is there a way to make it black on all the other pages.

Hi,

Your site is private. Can you setup password & share url again? We can check easier