Robuta

https://api.highcharts.com/highmaps/series.geoheatmap.dataLabels.borderWidth series.geoheatmap.dataLabels.borderWidth | Highcharts Maps JS API Reference The border width in pixels for the data label. highcharts maps js api series datalabels borderwidth https://kymdata.com/ KYM Data - Custom data analytics and visualisation | Highcharts | CartoDB | Leaflet | Google Maps custom analytics kym data