# 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.

# plotOptions.series.marker.states.hover.radius

The radius of the point marker. In hover state, it defaults to the normal state's radius + 2 as per the radiusPlus option.