{"version":"1.0","type":"rich","title":"Choropleth Map","description":"This choropleth map colors world countries by economic classification using a categorical ordinal scale with a spectral color scheme. Users can zoom and pan the natural Earth projection, while a custom color legend displays the category colors and labels. The visualization loads geographic and metadata from the world-atlas TopoJSON and TSV files, rendering paths via d3.geoPath and enabling interaction through d3.zoom. Hovering highlights individual countries, and the legend is built with reusable d3 selections.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/8419cf0f6ce744778fe1035aaed1d09d?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}