# 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.

# navigation.buttonOptions

A collection of options for buttons appearing in the exporting module.

In styled mode, the buttons are styled with the `.highcharts-contextbutton` and `.highcharts-button-symbol` classes.