Index: wp-admin/css/wp-admin.css
===================================================================
--- wp-admin/css/wp-admin.css	(revision 26605)
+++ wp-admin/css/wp-admin.css	(working copy)
@@ -10487,6 +10487,15 @@
 	text-decoration: none !important;
 }
 
+.js #widgets-left .sidebar-name .sidebar-name-arrow {
+	display: none;
+}
+
+.js #widgets-left .widgets-holder-wrap.closed .sidebar-name .sidebar-name-arrow,
+.js #widgets-left .sidebar-name:hover .sidebar-name-arrow {
+	display: block;
+}
+
 /* Show the arrow only on hover */
 .js .sidebar-name .sidebar-name-arrow:before,
 .js .meta-box-sortables .postbox .handlediv:before {
Index: wp-admin/includes/widgets.php
===================================================================
--- wp-admin/includes/widgets.php	(revision 26605)
+++ wp-admin/includes/widgets.php	(working copy)
@@ -71,8 +71,8 @@
 	$description = wp_sidebar_description( $sidebar );
 
 	echo '<div id="' . esc_attr( $sidebar ) . '" class="widgets-sortables">';
+
 	if ( $sidebar_name ) {
-		if( 'Inactive Widgets' != $sidebar_name ) {
 		?>
 		<div class="sidebar-name">
 			<div class="sidebar-name-arrow"><br /></div>
@@ -79,13 +79,6 @@
 			<h3><?php echo esc_html( $sidebar_name ); ?> <span class="spinner"></span></h3>
 		</div>
 		<?php
-		} else {
-		?>
-		<div>
-			<h3><?php echo esc_html( $sidebar_name ); ?> <span class="spinner"></span></h3>
-		</div>
-		<?php
-		}
 	}
 
 	echo '<div class="sidebar-description">';
Index: wp-admin/widgets.php
===================================================================
--- wp-admin/widgets.php	(revision 26605)
+++ wp-admin/widgets.php	(working copy)
@@ -329,7 +329,8 @@
 <div class="widget-liquid-left">
 <div id="widgets-left">
 	<div id="available-widgets" class="widgets-holder-wrap">
-		<div>
+		<div class="sidebar-name">
+			<div class="sidebar-name-arrow"><br /></div>
 			<h3><?php _e('Available Widgets'); ?> <span id="removing-widget"><?php _ex('Deactivate', 'removing-widget'); ?> <span></span></span></h3>
 		</div>
 		<div class="widget-holder">
@@ -349,7 +350,7 @@
 $theme_sidebars = array();
 foreach ( $wp_registered_sidebars as $sidebar => $registered_sidebar ) {
 	if ( false !== strpos( $registered_sidebar['class'], 'inactive-sidebar' ) || 'orphaned_widgets' == substr( $sidebar, 0, 16 ) ) {
-		$wrap_class = ( $registered_sidebar['id'] == 'wp_inactive_widgets' ) ? '' : 'widgets-holder-wrap';
+		$wrap_class = 'widgets-holder-wrap';
 		if ( !empty( $registered_sidebar['class'] ) )
 			$wrap_class .= ' ' . $registered_sidebar['class'];