HighchartsTooltipHeaderOptions constructor
HighchartsTooltipHeaderOptions({})
Options for the tooltip header when tooltip.split is enabled. The header is the box containing the X value in a split tooltip.
API Docs: https://api.highcharts.com/highcharts/tooltip.header
Implementation
HighchartsTooltipHeaderOptions(
{this.backgroundColor,
this.borderColor,
this.borderWidth,
this.distance,
this.shape,
this.style});