wp_default_styles( WP_Styles $styles )

1547function wp_default_styles( $styles ) {1548	global $editor_styles;1549 1550	/*1551	 * Include an unmodified $wp_version.1552	 *1553	 * Note: wp_get_wp_version() is not used here, as this file can be included1554	 * via wp-admin/load-scripts.php or wp-admin/load-styles.php, in which case1555	 * wp-includes/functions.php is not loaded.1556	 */1557	require ABSPATH . WPINC . '/version.php';1558 1559	if ( ! defined( 'SCRIPT_DEBUG' ) ) {1560		/*1561		 * Note: str_contains() is not used here, as this file can be included1562		 * via wp-admin/load-scripts.php or wp-admin/load-styles.php, in which case1563		 * the polyfills from wp-includes/compat.php are not loaded.1564		 */1565		define( 'SCRIPT_DEBUG', false !== strpos( $wp_version, '-src' ) );1566	}1567 1568	$guessurl = site_url();1569 1570	if ( ! $guessurl ) {1571		$guessurl = wp_guess_url();1572	}1573 1574	$styles->base_url        = $guessurl;1575	$styles->content_url     = defined( 'WP_CONTENT_URL' ) ? WP_CONTENT_URL : '';1576	$styles->default_version = get_bloginfo( 'version' );1577	$styles->text_direction  = function_exists( 'is_rtl' ) && is_rtl() ? 'rtl' : 'ltr';1578	$styles->default_dirs    = array( '/wp-admin/', '/wp-includes/css/' );1579 1580	// Open Sans is no longer used by core, but may be relied upon by themes and plugins.1581	$open_sans_font_url = '';1582 1583	/*1584	 * translators: If there are characters in your language that are not supported1585	 * by Open Sans, translate this to 'off'. Do not translate into your own language.1586	 */1587	if ( 'off' !== _x( 'on', 'Open Sans font: on or off' ) ) {1588		$subsets = 'latin,latin-ext';1589 1590		/*1591		 * translators: To add an additional Open Sans character subset specific to your language,1592		 * translate this to 'greek', 'cyrillic' or 'vietnamese'. Do not translate into your own language.1593		 */1594		$subset = _x( 'no-subset', 'Open Sans font: add new subset (greek, cyrillic, vietnamese)' );1595 1596		if ( 'cyrillic' === $subset ) {1597			$subsets .= ',cyrillic,cyrillic-ext';1598		} elseif ( 'greek' === $subset ) {1599			$subsets .= ',greek,greek-ext';1600		} elseif ( 'vietnamese' === $subset ) {1601			$subsets .= ',vietnamese';1602		}1603 1604		// Hotlink Open Sans, for now.1605		$open_sans_font_url = "https://fonts.googleapis.com/css?family=Open+Sans:300italic,400italic,600italic,300,400,600&subset=$subsets&display=fallback";1606	}1607 1608	// Register a stylesheet for the selected admin color scheme.1609	$styles->add( 'colors', true, array( 'wp-admin', 'buttons' ) );1610 1611	$suffix = SCRIPT_DEBUG ? '' : '.min';1612 1613	// Admin CSS.1614	$styles->add( 'common', "/wp-admin/css/common$suffix.css" );1615	$styles->add( 'forms', "/wp-admin/css/forms$suffix.css" );1616	$styles->add( 'admin-menu', "/wp-admin/css/admin-menu$suffix.css" );1617	$styles->add( 'dashboard', "/wp-admin/css/dashboard$suffix.css" );1618	$styles->add( 'list-tables', "/wp-admin/css/list-tables$suffix.css" );1619	$styles->add( 'edit', "/wp-admin/css/edit$suffix.css" );1620	$styles->add( 'revisions', "/wp-admin/css/revisions$suffix.css" );1621	$styles->add( 'media', "/wp-admin/css/media$suffix.css" );1622	$styles->add( 'themes', "/wp-admin/css/themes$suffix.css" );1623	$styles->add( 'about', "/wp-admin/css/about$suffix.css" );1624	$styles->add( 'nav-menus', "/wp-admin/css/nav-menus$suffix.css" );1625	$styles->add( 'widgets', "/wp-admin/css/widgets$suffix.css", array( 'wp-pointer' ) );1626	$styles->add( 'site-icon', "/wp-admin/css/site-icon$suffix.css" );