diff --git a/core/lib/Drupal/Core/Extension/ThemeHandler.php b/core/lib/Drupal/Core/Extension/ThemeHandler.php
index 57a317e..3bfca86 100644
--- a/core/lib/Drupal/Core/Extension/ThemeHandler.php
+++ b/core/lib/Drupal/Core/Extension/ThemeHandler.php
@@ -452,7 +452,7 @@ public function rebuildThemeData() {
         'secondary_menu' => 'Secondary menu',
         'footer' => 'Footer',
         'highlighted' => 'Highlighted',
-        'messages' => 'Messages',
+        'highlighted' => 'Highlighted',
         'help' => 'Help',
         'page_top' => 'Page top',
         'page_bottom' => 'Page bottom',
diff --git a/core/profiles/standard/config/install/block.block.bartik_messages.yml b/core/profiles/standard/config/install/block.block.bartik_messages.yml
index 1d817dd..c23d39e 100644
--- a/core/profiles/standard/config/install/block.block.bartik_messages.yml
+++ b/core/profiles/standard/config/install/block.block.bartik_messages.yml
@@ -3,7 +3,7 @@ theme: bartik
 weight: 0
 status: true
 langcode: en
-region: messages
+region: highlighted
 plugin: system_messages_block
 settings:
   id: system_messages_block
diff --git a/core/themes/bartik/bartik.info.yml b/core/themes/bartik/bartik.info.yml
index c96aae7..69bbcb6 100644
--- a/core/themes/bartik/bartik.info.yml
+++ b/core/themes/bartik/bartik.info.yml
@@ -19,7 +19,7 @@ regions:
   help: Help
   page_top: 'Page top'
   page_bottom: 'Page bottom'
-  messages: Messages
+  highlighted: 'Highlighted'
   featured_top: 'Featured top'
   breadcrumb: Breadcrumb
   content: Content
diff --git a/core/themes/bartik/templates/maintenance-page.html.twig b/core/themes/bartik/templates/maintenance-page.html.twig
index c4eae01..06f344e 100644
--- a/core/themes/bartik/templates/maintenance-page.html.twig
+++ b/core/themes/bartik/templates/maintenance-page.html.twig
@@ -39,7 +39,7 @@
               <h1 class="title" id="page-title">{{ title }}</h1>
             {% endif %}
             {{ page.content }}
-            {{ page.messages }}
+            {{ page.highlighted }}
           </section>
         </main>
       </div>
diff --git a/core/themes/bartik/templates/page.html.twig b/core/themes/bartik/templates/page.html.twig
index 60b2885..9e070d3 100644
--- a/core/themes/bartik/templates/page.html.twig
+++ b/core/themes/bartik/templates/page.html.twig
@@ -49,7 +49,7 @@
  *
  * Regions:
  * - page.header: Items for the header region.
- * - page.messages: Status and error messages. Should be displayed prominently.
+ * - page.highlighted: Items for the highlighted region.
  * - page.primary_menu: Items for the primary menu region.
  * - page.secondary_menu: Items for the secondary menu region.
  * - page.featured_top: Items for the featured top region.
@@ -109,7 +109,13 @@
         {{ page.primary_menu }}
       </div>
     </header>
-    {{ page.messages }}
+    {% if page.highlighted %}
+      <div class="highlighted">
+        <aside class="layout-container section clearfix" role="complementary">
+          {{ page.highlighted }}
+        </aside>
+      </div>
+    {% endif %}
     {% if page.featured_top %}
       <div class="featured-top">
         <aside class="featured-top__inner section layout-container clearfix" role="complementary">