This choropleth-style map displays Australian states using light green fills with brown borders and hover highlighting. The visualization uses a geo-albers-usa projection through `d3.geoPath` to render TopoJSON data fetched from a GitHub gist, with state names labeled at each region’s centroid. Built with D3 v5 and TopoJSON, the SVG paths include tooltips via appended `title` elements, while state labels are positioned using the path generator’s `centroid` method.