--- a/web/data/cubicweb.facets.css	Fri Apr 29 09:08:30 2011 +0200
+++ b/web/data/cubicweb.facets.css	Thu Apr 14 14:41:40 2011 +0200
@@ -117,3 +117,7 @@
   font-weight:    bold;
   text-align:     center;
 }
+
+div.facetTitleSelected {
+  background: url("required.png") no-repeat right top;
+}