# 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

Options for the point markers of line and scatter-like series. Properties like `fillColor`, `lineColor` and `lineWidth` define the visual appearance of the markers. The `symbol` option defines the shape. Other series types, like column series, don't have markers, but have visual options on the series level instead.

In styled mode, the markers can be styled with the `.highcharts-point`, `.highcharts-point-hover` and `.highcharts-point-select` class names.