I am trying out the highcharter package in R. I am trying to add a tooltip. The default (first example) gives me a marker and the series name.

hc_tooltip(
      shared = TRUE,
      split = FALSE,
      valueDecimals = 2)

But when I try to to add text color to the tooltip to match the series color I lose the markers. My attempt below only yields the marker name but not the marker. Does anyone have a solution that works around my attempt?

hc<-hc %>% hc_tooltip(
    shared = TRUE,
    split = FALSE,
    valueDecimals = 2,
    symbol = "circle",
    formatter = JS(
      "function () {
        var tooltip = '<b>' + Highcharts.dateFormat('%Y-%m-%d', this.x) + '</b><br/>';
        $.each(this.points, function (i, point) {
          var color = point.series.color;
          var marker = point.series.symbol; // Get the marker symbol
          tooltip += '<span style="color:' + color + ';"><b>' + marker + '</b>: '+ point.series.name + '</b>: ' + point.y.toFixed(2) + '</span><br/>';
        });
        return tooltip;
      }"
    )
  )