# 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.

# lang.accessibility

Configure the accessibility strings in the chart. Requires the accessibility module to be loaded. For a description of the module and information on its features, see Highcharts Accessibility.

The lang options use Format Strings with variables that are replaced at run time. These variables should be used when available, to avoid duplicating text that is defined elsewhere.

For more dynamic control over the accessibility functionality, see accessibility.point.descriptionFormatter, accessibility.series.descriptionFormatter, and accessibility.screenReaderSection.beforeChartFormatter.