The7 comes with custom "UberMenu" skin, which perfectly matches themes design & is fully compatible with themes appearance settings. Please note, that themes widgets and shortcodes are not 100% compatible with "UberMenu" out of the box and can't be inserted into your custom menu without certain amount of customization.
Attention! “UberMenu″ plugin doesn’t come as a part of The7 Theme package. This plugin isn't free! You should buy and install it separately.