// This theme requires WordPress 5.3 or later.
if ( version_compare( $GLOBALS['wp_version'
], '5.3', '<'
) ) { require get_template_directory() . '/inc/back-compat.php';
}if ( !
function_exists( 'twenty_twenty_one_setup'
) ) { /**
* Sets up theme defaults and registers support for various WordPress features.
*
* Note that this function is hooked into the after_setup_theme hook, which
* runs before the init hook. The init hook is too late for some features, such
* as indicating support for post thumbnails.
*
* @since Twenty Twenty-One 1.0
*
* @return void
*/