I have installed the Maximum template. In the demo the background of the hamburger (mobile) menu, has the same color as the highlights of the selected colour. In the installed sample data the background is #222222. In the customizer I have tried changing every background colour, but I can't find which one is the background for the mobile menu. Could you please inform me which one I need to give the mobile menu a background colour? See attached screenshot.

Thanks in advance.

Hi there,
what color do you want to change? The hamburger menu or the main menu?

The background of the hamburger menu. As you can see in my previous screenshot, the background is dark grey. As you can see in this screenshot from the demo website, the background should be pink.

Hi there,
two possibilities:

1.) Update the theme > Download the package and install the theme
or
2.) YOu can add the background manually. Add this code to your css/custom.css

.uk-navbar-toggle {
background-color: #ff0000;
}

Sorry, not solved

Sorry, spoke too soon. The problem is not solved. I made a custom.css in the different styles. But for some reason every style now uses the colour from the first custom.css I made. So every style (colour) has the same colour background in the hamburger menu. Where should I put the custom.css? Because I assumed you can make a custom.css for every style.