[Chartjs]-Change Radius/Point size of Legend Points in chart.js when usePointStyle is true

You can use the boxWidth option to influence the size of the point in the legend:

options: {
  legend: {
    labels: {
      usePointStyle: true,
      boxWidth: 6
    }
  }
}

Looking at the chartjs code (version 2.8), boxWidth is used as long as it is smaller than fontSize. fontSize is used as it gets larger than boxWidth.

If you read the documentation of chartjs about legend:

usePointStyle

Label style will match corresponding point style (size is based on fontSize, boxWidth is not used in this case).

So just by adding:

...
labels: {
  fontSize: 2,
    usePointStyle:true,
}
...

JSFiddle with the modified size

You get the size of the legend points smaller.

Maybe I understood you wrong, if so leave a comment and I will modify my answer to fit the new question