content: {}
  
  { key1: "value", key2: 55, key3: 5+3 }
  
  { "Jane Doe": 1001, "John Doe": 1002 }
  
  {
      Myfunc1: aFunction
      Myval1: "the value"
  }
  
  {
      alpha: 1,
      zulu: 26
  }
  
  {
      values: rt_prefs,
      heading: "Movie Ratings from Critics and Users",
      default: "enabled"
  }
  
  {Text: title + chr(10) + text, TextAttrs:{Color:"#FFFFFFFF", Font:"Small", HAlign:"HCenter", VAlign:"VCenter",  Direction:"LeftToRight"}, TargetRect:{x:0,y:0,w:obj.canvasrect.w,h:0}}
  
  {
      Text: "loading image....",
      TextAttrs: {
          Color:"#A0FFFFFF",
          Font:"Small",
          HAlign:"HCenter",
          VAlign:"VCenter",
          Direction:"LeftToRight"
      },
      TargetRect: {
          x:0,
          y:0,
          w:int(obj.canvasrect.w),
          h:0
      }
  }