# 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.

# series.funnel.color

The color of the pie series. A pie series is represented as an empty circle if the total sum of its values is 0. Use this property to define the color of its border.

In styled mode, the color can be defined by the colorIndex option. Also, the series color can be set with the `.highcharts-series`, `.highcharts-color-{n}`, `.highcharts-{type}-series` or `.highcharts-series-{n}` class, or individual classes given by the `className` option.

In maps, the series color is rarely used, as most choropleth maps use the color to denote the value of each point. The series color can however be used in a map with multiple series holding categorized data.