This choropleth map colors world countries by their economy classification using an ordinal color scale with the spectral scheme. The visualization supports zooming and panning through D3’s zoom behavior, while hover effects highlight individual countries. It renders geographic boundaries with d3.geoPath and a Natural Earth projection, and includes a custom color legend built with SVG circles and text. Data is loaded from the World Atlas TopoJSON and TSV files, processed via topojson.feature, and joined by country ID.