paper: make annotate popup use theme colors

mercurial/templates/static/style-paper.css

@@ -214,7 +214,7 b' div.annotate-info {'
   display: none;
   position: absolute;
   background-color: #FFFFFF;
-  border: 1px solid #000000;
+  border: 1px solid #999;
   text-align: left;
   color: #000000;
   padding: 5px;