diff -u b/core/modules/views_ui/css/views_ui.admin.theme.css b/core/modules/views_ui/css/views_ui.admin.theme.css
--- b/core/modules/views_ui/css/views_ui.admin.theme.css
+++ b/core/modules/views_ui/css/views_ui.admin.theme.css
@@ -749,6 +749,7 @@
  */
 
 .views-filterable-options .form-type-checkbox {
+  border: 1px solid #ccc;
   padding: 5px 8px;
   border-top: none;
 }
@@ -757,6 +758,10 @@
   border-top:  1px solid #ccc;
 }
 
+.views-filterable-options .filterable-option:nth-of-type(even) .form-type-checkbox {
+  background-color: #f3f4ee;
+}
+
 .filterable-option .form-item {
   margin-bottom: 0;
   margin-top: 0;
@@ -819,7 +824,6 @@
  */
 
 .views-filterable-options .form-type-checkbox {
-  border: 1px solid #ccc;
   padding: 5px 8px;
   border-top: none;
 }
@@ -828,10 +832,6 @@
   border-top:  1px solid #ccc;
 }
 
-.views-filterable-options .filterable-option:nth-of-type(even) .form-type-checkbox {
-  background-color: #f3f4ee;
-}
-
 .filterable-option .form-item {
   margin-bottom: 0;
   margin-top: 0;
diff -u b/core/modules/views_ui/src/Form/Ajax/AddHandler.php b/core/modules/views_ui/src/Form/Ajax/AddHandler.php
--- b/core/modules/views_ui/src/Form/Ajax/AddHandler.php
+++ b/core/modules/views_ui/src/Form/Ajax/AddHandler.php
@@ -109,13 +109,12 @@
         '#suffix' => '</div>',
         '#type' => 'table',
         '#header' => array(
-          t('Title'),
-          t('Description'),
-          t('Category'),
+          $this->t('Title'),
+          $this->t('Category'),
+          $this->t('Description'),
         ),
         '#tableselect' => TRUE,
         '#tree' => TRUE,
-
       );
 
       // Group options first to simplify the usage of #states.
@@ -162,12 +161,12 @@
             'title' => array(
               '#markup' => $option['title'],
             ),
-            'help' => array(
-              '#markup' => $option['help'],
-            ),
             'group' => array(
               '#markup' => $option['group'],
             ),
+            'help' => array(
+              '#markup' => $option['help'],
+            ),
           );
         }
       }