Welcome to theHighcharts JSOptions Reference

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

Feel free to search thisAPIthrough the search bar or the navigation tree in the sidebar.

plotOptions.sankey.borderWidth

The width of the border surrounding each column or bar. Defaults to1when there is room for a border, but to0when the columns are so dense that a border would cover the next column.

In styled mode, the stroke width can be set with the.highcharts-pointrule.