Scrollbar color on supervised user creation screen is changed to be clear for user.

chrome/browser/resources/chromeos/login/screen_locally_managed_user_creation.css

Index: chrome/browser/resources/chromeos/login/screen_locally_managed_user_creation.css
diff --git a/chrome/browser/resources/chromeos/login/screen_locally_managed_user_creation.css b/chrome/browser/resources/chromeos/login/screen_locally_managed_user_creation.css
index 32521d66454c78bf595e3c6c027dc493cc690f48..89d38eed39902904225b968cd673d7479c9ca542 100644
--- a/chrome/browser/resources/chromeos/login/screen_locally_managed_user_creation.css
+++ b/chrome/browser/resources/chromeos/login/screen_locally_managed_user_creation.css
@@ -42,6 +42,18 @@
   position: absolute;
 }
 
+.below-marketing::-webkit-scrollbar {
+  width: 8px;
+}
+
+.below-marketing::-webkit-scrollbar-track-piece {
+  background: #eee;
+}
+
+.below-marketing::-webkit-scrollbar-thumb {
+  background: #888;
+}
+
 #managed-user-creation .page-no-marketing {
   height: 470px;
   padding: 70px 17px 0;