{"version":"1.0","type":"rich","title":"Choropleth Map","description":"This choropleth map colors countries by economic classification, with a color legend and zooming and panning via d3.zoom. It loads world geometry from TopoJSON and country names from TSV data, joining them by ID. The map uses a natural Earth projection via d3.geoNaturalEarth1 and d3.geoPath, with an ordinal color scale based on d3.scaleOrdinal and a spectral scheme. Hovering highlights countries, and a custom color legend is built with reusable SVG components.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/746f837bddf549cd90b657ea01ea8c22?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}