diff --git a/web/pgadmin/dashboard/__init__.py b/web/pgadmin/dashboard/__init__.py
index 8ebf4c918..ae0cbf561 100644
--- a/web/pgadmin/dashboard/__init__.py
+++ b/web/pgadmin/dashboard/__init__.py
@@ -154,7 +154,7 @@ class DashboardModule(PgAdminModule):
         self.long_running_query_threshold = self.dashboard_preference.register(
             'display', 'long_running_query_threshold',
             gettext('Long running query thresholds'), 'threshold',
-            None, category_label=PREF_LABEL_DISPLAY,
+            '2|5', category_label=PREF_LABEL_DISPLAY,
             help_str=gettext('Set the warning and alert threshold value to '
                              'highlight the long-running queries on the '
                              'dashboard.')
diff --git a/web/pgadmin/static/scss/_backgrid.overrides.scss b/web/pgadmin/static/scss/_backgrid.overrides.scss
index 0729bf715..8b7a90729 100644
--- a/web/pgadmin/static/scss/_backgrid.overrides.scss
+++ b/web/pgadmin/static/scss/_backgrid.overrides.scss
@@ -345,7 +345,7 @@ table.backgrid {
   }
 
   tr.alert {
-    background-color: $color-danger-light !important;
+    background-color: $color-danger !important;
   }
 }