Ticket #26063: 26063.patch

src/wp-includes/script-loader.php

@@ -559 +559 @@
         $styles->add( 'ie', "/wp-admin/css/ie$suffix.css" );
         $styles->add_data( 'ie', 'conditional', 'lte IE 7' );
 
+        $subsets = 'latin,latin-ext';
+
+        /* translators: To add an additional Open Sans character subset specific to your language,
+         * translate this to 'greek', 'cyrillic' or 'vietnamese'. Do not translate into your own language.
+         */
+        $subset = _x( 'no-subset', 'Open Sans font: add new subset (greek, cyrillic, vietnamese)' );
+
+        if ( 'cyrillic' == $subset )
+                $subsets .= ',cyrillic,cyrillic-ext';
+        elseif ( 'greek' == $subset )
+                $subsets .= ',greek,greek-ext';
+        elseif ( 'vietnamese' == $subset )
+                $subsets .= ',vietnamese';
+
         // Hotlink Open Sans, for now
-        $styles->add( 'open-sans', '//fonts.googleapis.com/css?family=Open+Sans:300italic,400italic,600italic,300,400,600&subset=latin-ext,latin' );
+        $styles->add( 'open-sans', "//fonts.googleapis.com/css?family=Open+Sans:300italic,400italic,600italic,300,400,600&subset=$subsets" );
 
         // Dashicons
         $styles->add( 'dashicons', '/wp-includes/css/dashicons.css' );