Add custom icon option type within megamenu

if (function_exists('_filter_startup_essentials')) {

    remove_filter('fw_extensions_locations', '_filter_startup_essentials');
}

function _filter_startuplanding_mega_menu_icon($args) {
    $args['type'] = 'new-icon';

    return $args;
}

add_filter('fw:ext:megamenu:icon-option', '_filter_startuplanding_mega_menu_icon');