However, when observing users interact with the dashboard, found that some users click on the row label instead of the bar chart. When clicking the bar chart, this selects the mark as expected. When user clicks on the row label for the bar chart, this does not categorized as a mark selection. I suspect that is a highlight and not a mark selection.
Anyone else run into this? Is my assumption correct? If assumption is correct, is there a way to capture mark highlights?