The instance's u.over element
Returns the highlight color, read on every draw so a change in MAIDR's settings shows on the next move
Replaces the drawn highlight with one box per entry.
Boxes in plotting-area CSS pixels
Removes every highlight box.
Records the plot area -- the whole layer -- for readers of the canvas's pixels. Called on every show, since uPlot resizes the plotting area whenever the chart is resized.
Detaches the overlay from the chart.
Draws MAIDR's highlight boxes over a uPlot chart's plotting area.