GREAT!!! Thank you! That works for using the logo instead of the background image! Perfect.
Now I also tried this to make it fixed: https://generatepress.com/forums/topic/how-can-i-create-a-fixed-header-and-top-menu-in-the-generate-press-theme/#post-31579
But it keeps sawing the PAGE header (yellow background black and white photos) in half only displaying the bottom half of the PAGE header coming out under the nav bar.
And lastly – I have found several ways to change the header image for mobile – can you point me to the one that works best with this theme?