nav_menu_css_class
Filter Hook: Filters the CSS classes applied to a menu item’s list item element.
Source: wp-includes/class-walker-nav-menu.php:175
nav_menu_item_id
Filter Hook: Filters the ID attribute applied to a menu item’s list item element.
Source: wp-includes/class-walker-nav-menu.php:189
nav_menu_link_attributes
Filter Hook: Filters the HTML attributes applied to a menu item’s anchor element.
Source: wp-includes/class-walker-nav-menu.php:239