Accepted answer

You can try to set also the groupPadding = 0 and borderWidth = 0:

plotOptions: {
    column: {
      pointPadding: 0,
      borderWidth: 0,
      maxPointWidth: 32,
      groupPadding: 0

Note, that columns are equally spaced on the chart plot area and when you set fixed columns width then space between them has to be adjusted.


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