diff -r d55176dc72cc -r d45e95229c47 client/js/main.js
--- a/client/js/main.js	Wed Sep 09 15:18:53 2015 +0200
+++ b/client/js/main.js	Thu Sep 10 16:22:28 2015 +0200
@@ -117,9 +117,9 @@
         });
 
         this.read_only = this.options.read_only || !this.options.editor_mode;
-        
+
         this.router = new Rkns.Router();
-        
+
         this.project = new Rkns.Models.Project();
         this.dataloader = new Rkns.DataLoader.Loader(this.project, this.options);
 
@@ -563,8 +563,7 @@
             _path.segments[4].point.y = _path.segments[5].point.y = _bottom;
             _path.segments[1].point.y = _coords.y - _options.tooltip_arrow_width / 2;
             _path.segments[6].point.y = _coords.y + _options.tooltip_arrow_width / 2;
-            _path.closed = true;
-            _path.fillColor = new paper.GradientColor(new paper.Gradient([_options.tooltip_top_color, _options.tooltip_bottom_color]), [0, _top], [0, _bottom]);
+            _path.fillColor = new paper.Color(new paper.Gradient([_options.tooltip_top_color, _options.tooltip_bottom_color]), [0, _top], [0, _bottom]);
             _selector.css({
                 left: (_options.tooltip_padding + Math.min(_left, _right)),
                 top: (_options.tooltip_padding + _top)