Index: wp-content/themes/twentyten/style.css
===================================================================
--- wp-content/themes/twentyten/style.css	(revision 21103)
+++ wp-content/themes/twentyten/style.css	(working copy)
@@ -6,7 +6,7 @@
 Version: 1.4
 License: GNU General Public License v2 or later
 License URI: http://www.gnu.org/licenses/gpl-2.0.html
-Tags: black, blue, white, two-columns, fixed-width, custom-header, custom-background, threaded-comments, sticky-post, translation-ready, microformats, rtl-language-support, editor-style, custom-menu
+Tags: black, blue, white, two-columns, fixed-width, custom-header, custom-background, threaded-comments, sticky-post, translation-ready, microformats, rtl-language-support, editor-style, custom-menu, flexible-header
 Text Domain: twentyten
 */
 
Index: wp-content/themes/twentyeleven/style.css
===================================================================
--- wp-content/themes/twentyeleven/style.css	(revision 21103)
+++ wp-content/themes/twentyeleven/style.css	(working copy)
@@ -7,7 +7,7 @@
 Version: 1.4
 License: GNU General Public License v2 or later
 License URI: http://www.gnu.org/licenses/gpl-2.0.html
-Tags: dark, light, white, black, gray, one-column, two-columns, left-sidebar, right-sidebar, fixed-width, flexible-width, custom-background, custom-colors, custom-header, custom-menu, editor-style, featured-image-header, featured-images, full-width-template, microformats, post-formats, rtl-language-support, sticky-post, theme-options, translation-ready
+Tags: dark, light, white, black, gray, one-column, two-columns, left-sidebar, right-sidebar, fixed-width, flexible-width, custom-background, custom-colors, custom-header, custom-menu, editor-style, featured-image-header, featured-images, flexible-header, full-width-template, microformats, post-formats, rtl-language-support, sticky-post, theme-options, translation-ready
 Text Domain: twentyeleven
 */
 
Index: wp-admin/includes/theme.php
===================================================================
--- wp-admin/includes/theme.php	(revision 21103)
+++ wp-admin/includes/theme.php	(working copy)
@@ -151,7 +151,7 @@
 function get_theme_feature_list( $api = true ) {
 	// Hard-coded list is used if api not accessible.
 	$features = array(
-			__('Colors') => array(
+			__( 'Colors' ) => array(
 				'black'   => __( 'Black' ),
 				'blue'    => __( 'Blue' ),
 				'brown'   => __( 'Brown' ),
@@ -169,7 +169,7 @@
 				'light'   => __( 'Light' ),
 			),
 
-		__('Columns') => array(
+		__( 'Columns' ) => array(
 			'one-column'    => __( 'One Column' ),
 			'two-columns'   => __( 'Two Columns' ),
 			'three-columns' => __( 'Three Columns' ),
@@ -178,9 +178,10 @@
 			'right-sidebar' => __( 'Right Sidebar' ),
 		),
 
-		__('Width') => array(
-			'fixed-width'    => __( 'Fixed Width' ),
-			'flexible-width' => __( 'Flexible Width' ),
+		__( 'Width' ) => array(
+			'fixed-width'      => __( 'Fixed Width' ),
+			'flexible-width'   => __( 'Flexible Width' ),
+			'responsive-width' => __( 'Responsive Width' ),
 		),
 
 		__( 'Features' ) => array(
@@ -193,6 +194,7 @@
 			'editor-style'          => __( 'Editor Style' ),
 			'featured-image-header' => __( 'Featured Image Header' ),
 			'featured-images'       => __( 'Featured Images' ),
+			'flexible-header'       => __( 'Flexible Header' ),
 			'front-page-post-form'  => __( 'Front Page Posting' ),
 			'full-width-template'   => __( 'Full Width Template' ),
 			'microformats'          => __( 'Microformats' ),