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.


Formatter function to use instead of the default for point descriptions.

Receives one argument, point, referring to the point to describe. Should return a string with the description of the point for a screen reader user. If false is returned, the default formatter will be used for that point.

Note: Prefer using accessibility.point.valueDescriptionFormat instead if possible, as default functionality such as describing annotations will be preserved.