diff -u b/core/modules/views_ui/templates/views-ui-display-tab-bucket.html.twig b/core/modules/views_ui/templates/views-ui-display-tab-bucket.html.twig
--- b/core/modules/views_ui/templates/views-ui-display-tab-bucket.html.twig
+++ b/core/modules/views_ui/templates/views-ui-display-tab-bucket.html.twig
@@ -8,6 +8,9 @@
  * - actions: Action links such as "Add", "And/Or, Rearrange" for the content.
  * - title: The title of the bucket, e.g. "Fields", "Filter Criteria", etc.
  * - content: Content items such as fields or settings in this container.
+ * - name: The name of the bucket, e.g. "Fields", "Filter Criteria", etc.
+ * - overridden: A boolean indicating the setting has been overridden from the
+ *   default.
  *
  * @see template_preprocess_views_ui_display_tab_bucket()
  *
diff -u b/core/modules/views_ui/templates/views-ui-display-tab-setting.html.twig b/core/modules/views_ui/templates/views-ui-display-tab-setting.html.twig
--- b/core/modules/views_ui/templates/views-ui-display-tab-setting.html.twig
+++ b/core/modules/views_ui/templates/views-ui-display-tab-setting.html.twig
@@ -9,6 +9,9 @@
  * - attributes: HTML attributes such as class for the container.
  * - description: The description or label for this setting.
  * - settings_links: A list of links for this setting.
+ * - defaulted: A boolean indicating the setting is in its default state.
+ * - overridden: A boolean indicating the setting has been overridden from the
+ *   default.
  *
  * @see template_preprocess_views_ui_display_tab_setting()
  *