mercurial/templates/static/style-gitweb.css

--- a/mercurial/templates/static/style-gitweb.css	Fri Nov 10 18:45:43 2017 +0800
+++ b/mercurial/templates/static/style-gitweb.css	Fri Nov 10 18:50:44 2017 +0800
@@ -191,10 +191,9 @@
 }
 
 div#followlines {
-  background-color: #B7B7B7;
-  border: 1px solid #CCC;
-  border-radius: 5px;
-  padding: 4px;
+  background-color: #FFF;
+  border: 1px solid #d9d8d1;
+  padding: 5px;
   position: fixed;
 }