diff --git a/admin/images/noscreen.png b/admin/images/noscreen.png
new file mode 100644
index 00000000..afaaa034
Binary files /dev/null and b/admin/images/noscreen.png differ
diff --git a/var/Widget/Themes/List.php b/var/Widget/Themes/List.php
index 7274b7b3..f59804b2 100644
--- a/var/Widget/Themes/List.php
+++ b/var/Widget/Themes/List.php
@@ -52,7 +52,7 @@ class Widget_Themes_List extends Typecho_Widget
                         $info['screen'] = Typecho_Common::url(trim(__TYPECHO_THEME_DIR__, '/') .
                         '/' . $info['name'] . '/' . basename(current($screen)), $siteUrl);
                     } else {
-                        $info['screen'] = Typecho_Common::url('/images/noscreen.gif', $adminUrl);
+                        $info['screen'] = Typecho_Common::url('/images/noscreen.png', $adminUrl);
                     }
 
                     $result[$key] = $info;