Issue #3262674 by tstoeckler, lauriii, cindytwilliams, mherchel, Gábor Hojtsy:...

Issue #3262674 by tstoeckler, lauriii, cindytwilliams, mherchel, Gábor Hojtsy: Use Claro instead of Bartik as fallback maintenance theme

core/assets/scaffold/files/default.settings.php

@@ -591,7 +591,7 @@
  *
  * Note: This setting does not apply to installation and update pages.
  */
-# $settings['maintenance_theme'] = 'bartik';
+# $settings['maintenance_theme'] = 'claro';
 
 /**
  * PHP settings:

core/includes/theme.maintenance.inc

@@ -14,7 +14,7 @@
  * Used for site installs, updates and when the site is in maintenance mode.
  * It also applies when the database is unavailable or bootstrap was not
  * complete. Seven is always used for the initial install and update
- * operations. In other cases, Bartik is used, but this can be overridden by
+ * operations. In other cases, Claro is used, but this can be overridden by
  * setting a "maintenance_theme" key in the $settings variable in settings.php.
  */
 function _drupal_maintenance_theme() {
@@ -53,8 +53,8 @@ function _drupal_maintenance_theme() {
     }
     if (!$custom_theme) {
       // We have been unable to identify the configured theme, so fall back to
-      // a safe default. Bartik is reasonably user friendly and fairly generic.
-      $custom_theme = 'bartik';
+      // a safe default. Claro is reasonably user friendly and fairly generic.
+      $custom_theme = 'claro';
     }
   }
 

sites/default/default.settings.php

@@ -591,7 +591,7 @@
  *
  * Note: This setting does not apply to installation and update pages.
  */
-# $settings['maintenance_theme'] = 'bartik';
+# $settings['maintenance_theme'] = 'claro';
 
 /**
  * PHP settings: