Let’s give this a second try since no one bit the first time around.
I’ve figured out how to edit the header. The text color changed as I thought it should. But I cannot figure out how to change the menu colors or the blue bar above the main header. None of the buttons in the bottom right changed it. Site Header changes the header color if Color Picker is chosen as the header. Links - got that. Sidebar - got that. Headers - can’t figure what changes with it.