feat: add highlightBy functionality to ChartTooltip #255
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Description
Add
highlightBy
prop to<ChartTooltip />
. This allows you to define the highlight behavior on hover of an item.To simplify the PR review process. This only. includes all the functionality that will be used by the different mark types. Separate PRs will be submitted for each mark type (line, area, bar, scatter, donut).
Related Issue
#238
Motivation and Context
Often users want to highlight a group of points or marks when hovering over the chart.
Types of changes
Checklist: