This example renders a choropleth-style map of the United States using an Albers equal-area conic projection. The visualization displays state boundaries and interior borders overlaid on a light blue sphere, with pink landmasses. A React component loads US Atlas TopoJSON data via `d3.json` and `topojson.feature` and `topojson.mesh`, while `d3.geoPath` and `d3.geoGraticule` generate SVG paths for land, interiors, and the sphere. The map updates asynchronously, showing a loading message until the data arrives.