diff --git a/core/lib/Drupal/Core/Extension/ThemeHandler.php b/core/lib/Drupal/Core/Extension/ThemeHandler.php
index 40e59cb..93617dc 100644
--- a/core/lib/Drupal/Core/Extension/ThemeHandler.php
+++ b/core/lib/Drupal/Core/Extension/ThemeHandler.php
@@ -33,6 +33,8 @@ class ThemeHandler implements ThemeHandlerInterface {
     'comment_user_verification',
     'main_menu',
     'secondary_menu',
+    'breadcrumb',
+    'feed_icons',
   );
 
   /**
diff --git a/core/modules/system/config/system.theme.global.yml b/core/modules/system/config/system.theme.global.yml
index 2d5bc35..c11e8e5 100644
--- a/core/modules/system/config/system.theme.global.yml
+++ b/core/modules/system/config/system.theme.global.yml
@@ -4,9 +4,11 @@ favicon:
   url: ''
   use_default: '1'
 features:
+  breadcrumb: '1'
   comment_user_picture: '1'
   comment_user_verification: '1'
   favicon: '1'
+  feed_icons: '1'
   logo: '1'
   name: '1'
   node_user_picture: '1'