The mouse-over area to trigger tooltips on a charge seems to be set to a small circle surrounding each point on a chart (i.e. a line chart). This causes tooltips to only show when you hover directly over a point, instead of always showing a tip for whatever the closest point is. I noticed that the behavior for tips when using the focusTarget: 'category' option actually shows the tips of the closest set of points at all times. However, this option doesn't work for my use-case. Is there any way to get individual tooltips to behave in a similar way where tooltips will always show for the closest point when hovering over anywhere on a chart?
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