XY chart allow multiple bullet on a series. In your case, one bullet will be render:label and another render:circle.
You can change the label style using TextFormatter.
Refer Formatting Strings – amCharts 4 Documentation

XY chart allow multiple bullet on a series. In your case, one bullet will be render:label and another render:circle.
You can change the label style using TextFormatter.
Refer Formatting Strings – amCharts 4 Documentation
