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  data: {
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    datasets: [{
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      data: [ 200, 90, 120, 400, 500 ],
      fill: false,
      borderColor: 'green',
      backgroundColor: 'green',
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  },
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    annotation: {
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        type: 'line',
        mode: 'vertical',
        scaleID: 'x-axis-0',
        value: 2,
        borderColor: 'red',
        borderWidth: 4,
        label: {
          enabled: true,
          content: 'Something changed'
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        yScaleID: 'y-axis-0',
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        yMax: 50,
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        xMax: 5,
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    plugins: {
      datalabels: {
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        align: 'bottom',
        backgroundColor: '#ccc',
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}