NodeShuffler/doc/img/graph.json

{
   "layers":[
      [
         {
            "name":"n2",
            "width":10,
            "height":10
         },
         {
            "name":"n1",
            "width":10,
            "height":10,
            "layers":[
               [
                  {
                     "name":"n2",
                     "width":10,
                     "height":10
                  }
               ]
            ]
         }
      ]
   ],
   "name":"n0"
}