Cleanness of main navigation header

Hi jasrobb!

The menu in the reference site you provided has a background image attached to the header.

Try customising and adding this code to the Quick CSS or custom.css:

#header {
    background: url('url to your image') repeat-x scroll 0% 0% transparent;
}

You can use a pattern or image as background and to give the shadow effect.

Best regards,
Arvish