Fork of Let's make a map with D3.js!
This map visualization displays world countries as filled regions on a globe-like sphere using a natural Earth projection. The example demonstrates map creation with D3.js version 5, using `d3.geoPath` and `d3.geoNaturalEarth1` for the projection. Country boundaries are rendered as SVG paths from the world-atlas TopoJSON dataset, which is processed through the `topojson` library's `feature()` function. The sphere is styled blue, while country shapes appear in light green with subtle black stroke outlines.