anchor.diff:        "tile_def": {
           "autoscale": true,
           "custom_unit": "%",
  -        "precision": "4",
  +        "precision": "2",
           "requests": [
             {
               "aggregator": "avg",
  
positive.code:       "tile_def": {
          "autoscale": true,
          "custom_unit": "%",
          "precision": "4",
          "requests": [
            {
              "aggregator": "avg",
  
negative.code:       "width": 17,
        "x": 89,
        "y": 37
      },
      {
        "board_id": 14530,
  