{"version":"1.0","type":"rich","title":"Choropleth Map","description":"A choropleth map colors countries by economic classification using an ordinal color scale applied via `d3.scaleOrdinal` and `d3.schemeSpectral`. The map renders with `d3.geoPath` and a Natural Earth projection, drawing country boundaries from TopoJSON data loaded from the World Atlas. Hovering highlights a country in red, and a custom color legend built with reusable D3 code shows the category colors. The visualization supports zoom and pan through `d3.zoom`, with all elements rendered as SVG.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/47061c2862ab462ca83da10947e9aa01?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}