I downloaded the official airi child theme and uploaded the content via ftp into my wp-themes directory.
As soon as I activate the cild theme in Wordpress, my main menu has a buggy behaviour.
I’m using the menuStyle1 (Basic 1 - Inside header) and if I don’t scroll down it shows the menu correctly - inside the picture element just as expected.
But as soon as I scroll down, the menu has the white styling of the menuStyle2 (Basic 2 - outside header), instead of the dark blue one.
I tried to fix it by assigning the dark blue color scheme to the html site-header-class, but I could not manage to create the “inside header” menu style that way. It was basically an outside header style that way.
Edit: I was able to change the color of the header in the customizing colors -> header section.