--- a/templates/fancy.html	Sun Feb 07 23:51:41 2016 +0800
+++ b/templates/fancy.html	Mon Feb 08 01:20:57 2016 +0800
@@ -8,6 +8,15 @@
       * {
         font-family: monospace;
       }
+      .c3-tooltip .branch {
+        color: darkblue;
+      }
+      .c3-tooltip .tags {
+        color: darkred;
+      }
+      .c3-tooltip .merge {
+        color: darkgreen;
+      }
     </style>
     <script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.14/d3.min.js"></script>
     <script src="https://cdnjs.cloudflare.com/ajax/libs/c3/0.4.10/c3.js"></script>
@@ -53,7 +62,11 @@
         size: {height: 500},
         tooltip: {format: {title: function(x) {
           var c = data.csetmap[-x];
-          return c.rev + ':' + c.shortnode + ' <span style="color: darkblue;">' + c.branch + '</span> ' + c.firstline;
+          return c.rev + ':' + c.shortnode
+            + ' <span class="branch">' + c.branch + '</span>'
+            + ' <span class="tags">' + c.tags.join(', ') + '</span>'
+            + ' <span class="merge">' + c.merge + '</span> '
+            + c.firstline;
         }}},
         axis: {x: {tick: {format: function(x) { return -x; }}}},
         data: data

--- a/viewer.py	Sun Feb 07 23:51:41 2016 +0800
+++ b/viewer.py	Mon Feb 08 01:20:57 2016 +0800
@@ -262,6 +262,8 @@
             csetmap[cset['rev']] = {
                 'rev': cset['rev'],
                 'branch': cset['branch'],
+                'tags': cset['tags'],
+                'merge': 'M' if len(cset['parents']) > 1 else '',
                 'shortnode': cset['node'][:12],
                 'firstline': xhtml_escape(cset['desc'].partition('\n')[0])
             }