Click on the little bat like icon :

Then you'll get an image, if you have Java installed, like this:

• Drag mouse on an empty space to rotate the graph
• Rotate fast and release, like throwing, to make it keep spinning
• Drag nodes to move them, the graph will balance itself again when you release
• Click nodes to navigate to them
• Click center node to open the node URL in your browser window

You can change the settings at: Admin >Wiki>3d

Also ensure the option "XMLRPC API" is enabled in Admin >Freatures.
This feature is only enabled when some themes are chosen, like:

• moreneat.css
• TODO: list up the themes

• support for hotwords
• support for indication of external links
• client control of number of levels/depth of visualization
• support for UTF-8 encoded page name

Existing pages and not yet created ones can be displayed in different colors, usually in green and red respectively.