diff --git a/src/applications/differential/controller/DifferentialRevisionViewController.php b/src/applications/differential/controller/DifferentialRevisionViewController.php
--- a/src/applications/differential/controller/DifferentialRevisionViewController.php
+++ b/src/applications/differential/controller/DifferentialRevisionViewController.php
@@ -24,6 +24,7 @@
       ->needRelationships(true)
       ->needReviewerStatus(true)
       ->needReviewerAuthority(true)
+      ->needDrafts(true)
       ->executeOne();
 
     if (!$revision) {
@@ -962,6 +963,10 @@
       }
     }
 
+    if ($revision->getDrafts($this->getViewer())) {
+      $warnings[] = pht('You have unsubmitted comments on this revision.');
+    }
+
     return $warnings;
   }
 
diff --git a/src/applications/differential/view/DifferentialRevisionListView.php b/src/applications/differential/view/DifferentialRevisionListView.php
--- a/src/applications/differential/view/DifferentialRevisionListView.php
+++ b/src/applications/differential/view/DifferentialRevisionListView.php
@@ -127,7 +127,7 @@
 
       if (isset($icons['draft'])) {
         $draft = id(new PHUIIconView())
-          ->setIconFont('fa-comment-o lightgreytext')
+          ->setIconFont('fa-comment yellow')
           ->addSigil('has-tooltip')
           ->setMetadata(
             array(