Jetpack_Custom_CSS_Enhancements::admin_menu PHP Method

    public static function admin_menu()
    {
        // Add in our legacy page to support old bookmarks and such.
        add_submenu_page(null, __('CSS', 'jetpack'), __('Edit CSS', 'jetpack'), 'edit_theme_options', 'editcss', array(__CLASS__, 'admin_page'));
        // Add in our new page slug that will redirect to the customizer.
        $hook = add_theme_page(__('CSS', 'jetpack'), __('Edit CSS', 'jetpack'), 'edit_theme_options', 'editcss-customizer-redirect', array(__CLASS__, 'admin_page'));
        add_action("load-{$hook}", array(__CLASS__, 'customizer_redirect'));
    }