diff --git a/core/modules/views_ui/src/ViewFormBase.php b/core/modules/views_ui/src/ViewFormBase.php
index 49cdc49..d316e73 100644
--- a/core/modules/views_ui/src/ViewFormBase.php
+++ b/core/modules/views_ui/src/ViewFormBase.php
@@ -114,6 +114,9 @@ public function getDisplayTabs(ViewUI $view) {
       if (isset($display['display_options']['enabled']) && !$display['display_options']['enabled']) {
         $tabs[$id]['#link']['localized_options']['attributes']['class'][] = 'views-display-disabled-link';
       }
+      if ($view->changed_display[$id]) {
+        $tabs[$id]['#link']['localized_options']['attributes']['class'][] = 'views-display-changed-link';
+      }
     }
 
     // If the default display isn't supposed to be shown, don't display its tab, unless it's the only display.
diff --git a/core/themes/seven/css/components/tabs.css b/core/themes/seven/css/components/tabs.css
index bcc2988..2dbb941 100644
--- a/core/themes/seven/css/components/tabs.css
+++ b/core/themes/seven/css/components/tabs.css
@@ -245,8 +245,6 @@ li.tabs__tab a {
 }
 .tabs.secondary .tabs__tab {
   display: block;
-  padding: 5px 15px 5px 16px; /* LTR */
-  margin-left: -1px; /* LTR */
   color: #0074bd;
   -webkit-transition: border-color 0.2s, background-color 0.2s;
   transition: border-color 0.2s, background-color 0.2s;
@@ -263,22 +261,32 @@ li.tabs__tab a {
   padding-left: 0;
   padding-right: 0;
 }
-.tabs.secondary .tabs__tab + .tabs__tab {
+.tabs.secondary .tabs__tab {
   border-top: 1px solid #d9d8d4;
+  margin-left: 1em;
+  margin-right: 1em;
 }
 .tabs.secondary .tabs__tab.is-active {
   color: #004f80;
   border-left: 2px solid #004f80; /* LTR */
-  padding-left: 15px; /* LTR */
 }
 [dir="rtl"] .tabs.secondary .tabs__tab.is-active {
   border-left: 1px solid #bfbfbf;
   border-right: 2px solid #004f80;
   padding-right: 15px;
 }
-.views-displays .tabs.secondary li.is-active {
+.views-displays .tabs.secondary a {
+  padding: 7px 13px 5px;
+}
+.views-displays .tabs.secondary .tabs__tab a:hover {
+  border-bottom: 2px solid #008ee6;
+}
+.views-displays .tabs.secondary a.is-active {
   border-bottom: 2px solid #004f80;
 }
+.views-displays .tabs.secondary a.views-display-changed-link {
+  border-color: #e09600;
+}
 /* This is required to win over specificity of [dir="rtl"] .tabs.secondary .tabs__tab.is-active */
 [dir="rtl"] .views-displays .tabs.secondary li.is-active {
   border: 0 none;
@@ -288,7 +296,6 @@ li.tabs__tab a {
 .tabs.secondary .tabs__tab:focus {
   color: #008ee6;
   border-left: 2px solid #008ee6; /* LTR */
-  padding-left: 15px; /* LTR */
 }
 [dir="rtl"] .tabs.secondary .tabs__tab:hover,
 [dir="rtl"] .tabs.secondary .tabs__tab:focus {
@@ -301,6 +308,15 @@ li.tabs__tab a {
   border: 0 none;
   padding-right: 0;
 }
+.views-displays .tabs .open > a,
+.views-displays .tabs .open > a:hover {
+  color: #fff;
+  background-color: #40b6ff;
+  padding-top: 6px;
+  padding-right: 12px;
+  padding-left: 12px;
+}
+
 .tabs.secondary a {
   background-color: transparent;
   padding: 7px 13px 5px;
diff --git a/core/themes/seven/css/components/views-ui.css b/core/themes/seven/css/components/views-ui.css
index 6f0b0fd..78421a8 100644
--- a/core/themes/seven/css/components/views-ui.css
+++ b/core/themes/seven/css/components/views-ui.css
@@ -95,7 +95,6 @@ details.fieldset-no-legend {
 
 /* @group Lists */
 
-.views-admin ul.secondary,
 .views-admin .item-list ul {
   margin: 0;
   padding: 0;
@@ -105,6 +104,10 @@ details.fieldset-no-legend {
   color: #0074bd;
 }
 
+.views-displays .tabs.secondary a.views-display-changed-link {
+  color: #734c00;
+}
+
 .views-admin .links li {
   padding-right: 0; /* LTR */
 }
@@ -171,13 +174,6 @@ details.fieldset-no-legend {
   background-position: center 3px;
 }
 
-.views-displays .secondary .action-list li:first-child {
-  border-radius: 0 7px 0 0; /* LTR */
-}
-[dir="rtl"] .views-displays .secondary .action-list li:first-child {
-  border-radius: 7px 0 0 0;
-}
-
 .views-displays .secondary .action-list li:last-child {
   border-radius: 0 0 7px 7px;
 }
diff --git a/core/themes/stable/css/views_ui/views_ui.admin.theme.css b/core/themes/stable/css/views_ui/views_ui.admin.theme.css
index d747776..7777d1a 100644
--- a/core/themes/stable/css/views_ui/views_ui.admin.theme.css
+++ b/core/themes/stable/css/views_ui/views_ui.admin.theme.css
@@ -331,9 +331,11 @@ td.group-title {
 .views-displays .tabs.secondary li.is-active {
   background: transparent;
   border: 0;
-  padding: 7px 13px 5px;
   width: auto;
 }
+.views-displays .tabs .action-list {
+  top: 31px;
+}
 .views-displays .tabs li.add ul.action-list li {
   margin: 0;
 }
@@ -346,7 +348,6 @@ td.group-title {
 }
 .views-displays .tabs li.tabs__tab:hover {
   border: 0;
-  padding: 7px 13px 5px;
 }
 .views-displays .tabs.secondary a {
   display: inline-block;