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  "padding": 5,
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      {"name": "baseFontSize", "value": 14}
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    "title": {
      "fontSize": {"signal": "baseFontSize + 2"}
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  },
  "title": {
    "text": "Font Size Steps and Weber's Law?",
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    "orient": "top",
    "dy": 30
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      "name": "sizes",
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        {"size": 11},
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        {"size": 18},
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  "axes": [
    {
      "orient": "left",
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      "offset": 5,
      "values": [10, 20, 30, 40, 50, 60, 72],
      "title": ["Font Size", "(Linear)"],
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    },
    {
      "orient": "right",
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      "title": ["Font Size", "(Log-Transformed)"],
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      "orient": "top",
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