Sandbox2

{

 "version": 2,
 "width": 550,
 "height": 400,
   {
     "type": "text",
     "from": {"data": "tree"},
     "properties": {
       "enter": {
         "x": {"field": "layout_y", "offset": -10},
         "y": {"field": "layout_x"},
         "font": {"value": "Helvetica Neue"},
         "fontSize": {"value": 10},
         "align": {"value": "left"},
         "baseline": {"value": "middle"},
         "fill": {"value": "#000"},
         "text": {"field": "name"}
       }
     }
   }
 ]

}