These pages outline the chart configuration options, and the methods and properties of Highcharts objects.
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The HTML of the point's line in the tooltip. The context is the
Point class.
Variables are enclosed in curly brackets. Examples of common
variables to include are x, y, series.name and series.color
and other properties on the same form. Furthermore, y can be
extended by the tooltip.valuePrefix and tooltip.valueSuffix
variables. This can also be overridden for each series, which makes
it a good hook for displaying units.
In styled mode, the dot is colored by a class name rather than the point color.