How to highlight a series in a stepped area chart?

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Benjamin M. Hill

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Mar 6, 2020, 11:53:04 AM3/6/20

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I've got ~30 data series stuffed into my stepped area chart, so some of the colors are similar. (shades of purple).

When I mouseover, it would be nice to highlight the "selected" series so I can spot it in other columns.

I like the tooltip as-is (showing the currently hovered step cell)

Is there a way to add this with the events? It feels like it should be an easy thing. I looked into aggregationTarget, but that seemed to be a "once you selected stuff".

I think what I'm asking is:

How do I do "focusTarget:'series'" for highlighting?

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