{"version":"1.0","type":"rich","title":"d3 Choropleth Map","description":"This choropleth map colors countries by economic classification using a spectral color scale, with a legend showing the ordinal categories and hover effects highlighting individual countries. The map is rendered as an SVG using d3.geoPath with a geoNaturalEarth1 projection, while d3.zoom enables interactive panning and zooming. Data is loaded from the world-atlas TopoJSON and TSV files via topojson.feature, and the color legend is built custom with d3.scaleOrdinal and d3.schemeSpectral.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/9dfeba2a8cfc45cab9a1f684baebfc96?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}