diff -r f507feede89a -r 09a1c134465b web/wp-admin/theme-editor.php
--- a/web/wp-admin/theme-editor.php	Wed Dec 19 12:35:13 2012 -0800
+++ b/web/wp-admin/theme-editor.php	Wed Dec 19 17:46:52 2012 -0800
@@ -27,6 +27,7 @@
 	'<p>' . __('You can use the Theme Editor to edit the individual CSS and PHP files which make up your theme.') . '</p>
 	<p>' . __('Begin by choosing a theme to edit from the dropdown menu and clicking Select. A list then appears of all the template files. Clicking once on any file name causes the file to appear in the large Editor box.') . '</p>
 	<p>' . __('For PHP files, you can use the Documentation dropdown to select from functions recognized in that file. Lookup takes you to a web page with reference material about that particular function.') . '</p>
+	<p id="newcontent-description">' . __('In the editing area the Tab key enters a tab character. To move below this area by pressing Tab, press the Esc key followed by the Tab key.') . '</p>
 	<p>' . __('After typing in your edits, click Update File.') . '</p>
 	<p>' . __('<strong>Advice:</strong> think very carefully about your site crashing if you are live-editing the theme currently in use.') . '</p>
 	<p>' . __('Upgrading to a newer version of the same theme will override changes made here. To avoid this, consider creating a <a href="http://codex.wordpress.org/Child_Themes" target="_blank">child theme</a> instead.') . '</p>' .
@@ -45,7 +46,7 @@
 wp_reset_vars( array( 'action', 'error', 'file', 'theme' ) );
 
 if ( $theme )
-	$stylesheet = urldecode( $theme );
+	$stylesheet = $theme;
 else
 	$stylesheet = get_stylesheet();
 
@@ -67,7 +68,7 @@
 	$relative_file = 'style.css';
 	$file = $allowed_files['style.css'];
 } else {
-	$relative_file = urldecode( stripslashes( $file ) );
+	$relative_file = stripslashes( $file );
 	$file = $theme->get_stylesheet_directory() . '/' . $relative_file;
 }
 
@@ -198,12 +199,12 @@
 else : ?>
 	<form name="template" id="template" action="theme-editor.php" method="post">
 	<?php wp_nonce_field( 'edit-theme_' . $file . $stylesheet ); ?>
-		 <div><textarea cols="70" rows="30" name="newcontent" id="newcontent" tabindex="1"><?php echo $content ?></textarea>
-		 <input type="hidden" name="action" value="update" />
-		 <input type="hidden" name="file" value="<?php echo esc_attr( $relative_file ); ?>" />
-		 <input type="hidden" name="theme" value="<?php echo esc_attr( $theme->get_stylesheet() ); ?>" />
-		 <input type="hidden" name="scrollto" id="scrollto" value="<?php echo $scrollto; ?>" />
-		 </div>
+		<div><textarea cols="70" rows="30" name="newcontent" id="newcontent" aria-describedby="newcontent-description"><?php echo $content; ?></textarea>
+		<input type="hidden" name="action" value="update" />
+		<input type="hidden" name="file" value="<?php echo esc_attr( $relative_file ); ?>" />
+		<input type="hidden" name="theme" value="<?php echo esc_attr( $theme->get_stylesheet() ); ?>" />
+		<input type="hidden" name="scrollto" id="scrollto" value="<?php echo $scrollto; ?>" />
+		</div>
 	<?php if ( ! empty( $functions ) ) : ?>
 		<div id="documentation" class="hide-if-no-js">
 		<label for="docs-list"><?php _e('Documentation:') ?></label>
@@ -219,7 +220,7 @@
 		<?php endif; ?>
 <?php
 	if ( is_writeable( $file ) ) :
-		submit_button( __( 'Update File' ), 'primary', 'submit', true, array( 'tabindex' => '2' ) );
+		submit_button( __( 'Update File' ), 'primary', 'submit', true );
 	else : ?>
 <p><em><?php _e('You need to make this file writable before you can save your changes. See <a href="http://codex.wordpress.org/Changing_File_Permissions">the Codex</a> for more information.'); ?></em></p>
 <?php endif; ?>