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  "height": 200,
  "padding": 5,

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        {"events": "rect:mouseout", "update": "{x:0, y:0}"}
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      "type": "linear",
      "range": "height",
      "domain": {"data": "table", "field": "y"},
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      "type": "rect",
      "from": {"data": "table"},
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          "y": {"scale": "yscale", "field": "y"},
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        },
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        }
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    },
    {
      "type": "text",
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        "enter": {
          "align": {"value": "center"},
          "fill": {"value": "#333"}
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          "y": {"scale": "yscale", "signal": "label.y", "offset": -5},
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