This example displays a world map using React and D3, rendering countries and their interiors as SVG paths with a teal fill and red boundary strokes. It uses the `geoEqualEarth` projection and `geoPath` from D3 to generate shapes, while loading geographic data from the world-atlas TopoJSON dataset via the `json` and `feature`/`mesh` functions. The visualization is built with React components, with the map embedded in a fixed-size SVG viewport.