diff --git a/github-dark.css b/github-dark.css
index 09172b7..478a231 100644
--- a/github-dark.css
+++ b/github-dark.css
@@ -441,6 +441,23 @@ table.files td.icon {
     border-color: #4c85a0;
 }
 
+.TutorialPopover, .dropdown-menu {
+    color: #8485ce;
+    background-color: #1a2632;
+    border-color: #4c85a0;
+}
+
+.TutorialPopover::after {
+    border-top-color: #364952;
+    border-bottom-color: transparent;
+}
+
+.dropdown-menu::after {
+    background-color: #1a2632;
+    border-bottom-color: #1a2632;
+    border-top-color: transparent;
+}    
+
 .commits-list-item .commit-author {
     color: #00aba5;
 }
@@ -1957,4 +1974,4 @@ li.session-device {
 }
 
 
-/* End */
\ No newline at end of file
+/* End */