Welcome to the Highcharts JS (highcharts) Options Reference

These pages outline the chart configuration options, and the methods and properties of Highcharts objects.

Feel free to search this API through the search bar or the navigation tree in the sidebar.

series.item.borderRadius

The corner radius of the border surrounding each slice. A number signifies pixels. A percentage string, like for example 50%, signifies a size relative to the radius and the inner radius.