# JS API Reference

# Welcome to the Highcharts JS 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.

# colorAxis.dataClasses.from

The start of the value range that the data class represents, relating to the point value.

The range of each `dataClass` is closed in both ends, but can be overridden by the next `dataClass`.