# 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.

# palette.dark.highlightColor

Highlight color to be used as base for interpolated colors. For example, `var(--highcharts-highlight-color-60)` is a blend of the `highlightColor` and the `backgroundColor`, with a weight of 60% `highlightColor` and 40% `backgroundColor`.

Highlight colors are by default used for highlighted or active elements, like the zoom selection marker, clickable Stock Range Selector date input boxes, clickable drilldown labels and more.