# Welcome to the Highcharts Gantt JS (gantt) 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.xrange.data.className

An additional, individual class name for the data point's graphic representation. Changes to a point's color will also be reflected in a chart's legend and tooltip.