diff --git a/lib/ui/widgets/tablet_mode/memberships_panel.dart b/lib/ui/widgets/tablet_mode/memberships_panel.dart
index e3f2ed8..f207354 100644
--- a/lib/ui/widgets/tablet_mode/memberships_panel.dart
+++ b/lib/ui/widgets/tablet_mode/memberships_panel.dart
@@ -28,6 +28,7 @@ class MembershipsPanel extends StatefulWidget {
 
 const _MembershipIconsWidth = 30.0;
 
+/// TODO : add auto-refresh
 class _MembershipsPanelState extends SafeState<MembershipsPanel> {
   final _refreshKey = GlobalKey<RefreshIndicatorState>();
   MembershipList _membershipList;
@@ -156,13 +157,17 @@ class _MembershipsPanelState extends SafeState<MembershipsPanel> {
     );
   }
 
+  /// TODO : all calls notices
   Widget _buildConversationMembership(Membership membership) {
-    return ListTile(
-      dense: true,
-      leading: Icon(Icons.message),
-      title: Text(ConversationsHelper.getConversationName(
-          membership.conversation, _usersList)),
-      subtitle: Text(diffTimeFromNowToStr(membership.lastActive)),
+    return Container(
+      color: membership.conversation.sawLastMessage ? null : Color(0xFF1c443a),
+      child: ListTile(
+        dense: true,
+        leading: Icon(Icons.message),
+        title: Text(ConversationsHelper.getConversationName(
+            membership.conversation, _usersList)),
+        subtitle: Text(diffTimeFromNowToStr(membership.lastActive)),
+      ),
     );
   }