The _SeriesHighlightConfiguration type exposes the following members.
Gets the border settings of the target. The border option is supported when series.type is set to "donut", "bubble", "pie", "candlestick" or "ohlc".
The highlight color. Accepts a valid CSS color string, including hex and rgb. The color option is supported when series.type is set to "donut" or "pie".
Gets the target line settings.
The opacity of the highlighted points. The opacity option is supported when series.type is set to "bubble", "pie" or "donut".
If set to true the chart will highlight the series when the user hovers it with the mouse. By default chart series highlighting is enabled.