diff -r e410fcc078ee -r 18cb4c4c4e5e client/js/defaults.js
--- a/client/js/defaults.js	Thu Sep 10 01:02:19 2015 +0200
+++ b/client/js/defaults.js	Fri Sep 11 16:33:18 2015 +0200
@@ -114,15 +114,15 @@
         /* Maximum displayed text length */
     label_untitled_nodes: "(untitled)",
         /* Label to display on untitled nodes */
-    hide_nodes: true, 
+    hide_nodes: true,
         /* allow hide/show nodes */
     change_shapes: true,
         /* Change shapes enabled */
     change_types: true,
     /* Change type enabled */
-    
+
     /* NODE EDITOR TEMPLATE*/
-    
+
     node_editor_templates: {
         "default": "templates/nodeeditor_readonly.html",
         "video": "templates/nodeeditor_video.html"
@@ -155,6 +155,7 @@
     tooltip_bottom_color: "#d0d0d0",
     tooltip_border_color: "#808080",
     tooltip_border_width: 1,
+    tooltip_opacity: 0.8,
 
     richtext_editor_config: {
         toolbarGroups: [