But why do they show up sometimes, in the colors I have chosen, but not always?
Sometimes when I move my cursor down over the menu, it disappears altogther and sometimes it shows up.
Sometimes it is populated with the sub menu items in the chosen colors, and sometimes only some of the sub menu items show, so if some show and some don’t, I don’t think it is my chosen colours.
I just ran a test. I set up a 3 page test project with the Future theme, added one page as a subpage (dropdown) and I’m getting exactly the same issue previewing the test site in Safari.