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
nav_menu_item_title
Filter Hook: Filters a menu item’s title.
Source: wp-includes/class-walker-nav-menu.php:262
walker_nav_menu_start_el
Filter Hook: Filters a menu item’s starting output.
Source: wp-includes/class-walker-nav-menu.php:284