How to vary the thickness of doughnut chart, using ChartJs
If you are using chart.js for Angular via ng2-charts you would do something like this in your component.html file:
// component.html file
// Do note that other required directives are missing in this example, but that I chose to highlight the 'options' directive
And do something like this in your component.ts file:
//component.ts file
chartOptions = {
cutoutPercentage: 80
};
A helpful source of information: available chart directives and config options for the [options] directive