{"version":"1.0","type":"rich","title":"Choropleth Map","description":"A choropleth map colors world countries by their economy classification, using a categorical ordinal color scale. The visualization loads geographic data from the world-atlas TopoJSON and TSV files, then renders the map via d3.geoPath with a natural Earth projection. Zooming is enabled through d3.zoom, and countries highlight red on hover. A custom color legend displays the economy categories as colored circles, while the map also shows a blue sphere background. The code uses d3.scaleOrdinal with schemeSpectral ranges to assign colors.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/51dfeff3c269422da9127387ea5da02e?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}