This choropleth map displays a provincial wellbeing index for South Africa, using a green color scale to represent illustrative values from 0 to 100. The visualization loads TopoJSON data from a remote GitHub repository, converts it to GeoJSON features via topojson-client, and renders each province as a projected SVG path using d3.geoMercator and d3.geoPath. Interactive tooltips appear on hover, showing the province name and its associated wellbeing score through mouse events.