diff --git a/core/includes/menu.inc b/core/includes/menu.inc
index 1103be6..91598b3 100644
--- a/core/includes/menu.inc
+++ b/core/includes/menu.inc
@@ -1662,6 +1662,40 @@ function theme_menu_local_task($variables) {
 }
 
 /**
+ * Preprocess variables for a single local task link.
+ *
+ * @param $variables
+ *   An associative array containing:
+ *   - element: A render element containing:
+ *     - #link: A menu link array with 'title', 'href', and 'localized_options'
+ *       keys.
+ *     - #active: A boolean indicating whether the local task is active.
+ *
+ * @ingroup themeable
+ */
+function template_preprocess_menu_local_task(&$variables) {
+  $link = $variables['element']['#link'];
+  $link_text = $link['title'];
+
+  $variables['wrapper_attributes'] = new Attribute();
+  if (!empty($variables['element']['#active'])) {
+    $variables['wrapper_attributes']['class'] = array('active');
+    // Add text to indicate active tab for non-visual users.
+    $active = '<span class="element-invisible">' . t('(active tab)') . '</span>';
+
+    // If the link does not contain HTML already, check_plain() it now.
+    // After we set 'html'=TRUE the link will not be sanitized by l().
+    if (empty($link['localized_options']['html'])) {
+      $link['title'] = check_plain($link['title']);
+    }
+    $link['localized_options']['html'] = TRUE;
+    $link_text = t('!local-task-title!active', array('!local-task-title' => $link['title'], '!active' => $active));
+  }
+
+  $variables['link'] = l($link_text, $link['href'], $link['localized_options']);
+}
+
+/**
  * Returns HTML for a single local action link.
  *
  * @param $variables
diff --git a/core/themes/stark/templates/menu/menu-local-task.html.twig b/core/themes/stark/templates/menu/menu-local-task.html.twig
new file mode 100644
index 0000000..ccac471
--- /dev/null
+++ b/core/themes/stark/templates/menu/menu-local-task.html.twig
@@ -0,0 +1,17 @@
+{#
+/**
+ * @file
+ * Default theme implementation for a local task menu.
+ *
+ * - wrapper_attributes: HTML attributes for the wrapper element.
+ * - link: HTML string representing the rendered link.
+ *
+ * @see template_preprocess
+ * @see template_preprocess_menu_local_task
+ *
+ * @ingroup themeable
+ */
+#}
+<li class="{{ wrapper_attributes.class }}" {{- wrapper_attributes }}>
+  {{- link -}}
+</li>