{"version":"1.0","type":"rich","title":"Choropleth Map with Interactive Filtering","description":"A choropleth map displays countries colored by economic grouping, with a legend of color categories that users can click to highlight matching regions and fade all others. The map uses a natural Earth projection via `d3.geoNaturalEarth1` and `d3.geoPath`, while the legend employs scale-ordinal colors from `schemeSpectral` and interactive click handlers. Panning and zooming are enabled through `d3.zoom`. The geographic data comes from the World Atlas TopoJSON, with ISO country mappings joined from TSV metadata.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/cd40b92944034b41a56dca5779fb5c48?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}