WP_Customize_Nav_Menu_Control
Customize Nav Menu Control Class.
WordPress File wp-includes/customize/class-wp-customize-nav-menu-control.php
WP_Customize_Nav_Menu_Control::content_template()
JS/Underscore template for the control UI.
WP_Customize_Nav_Menu_Control::json()
Return parameters for this control.
WP_Customize_Nav_Menu_Control::render_content()
Don’t render the control’s content – it uses a JS template instead.