# 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

An object containing language-related strings and settings. A typical setup uses `Highcharts.setOptions` to make the options apply to all charts in the same page.

    Highcharts.setOptions({
        lang: {
            locale: 'fr'
        }
    });