{"version":"1.0","type":"rich","title":"Choropleth Map with Interactive Filtering","description":"This choropleth map displays global economic classifications per country, with a natural Earth projection and color-coded fill based on categorical data. Users interactively filter the map by clicking color legend items, which dims all non-selected countries and reduces the sphere’s opacity. The visualization uses D3 v5 APIs including `d3.geoPath`, `d3.geoNaturalEarth1`, `d3.scaleOrdinal`, and `d3.zoom`, with topojson loading world-atlas data. Hovering a country reveals its name and value via a tooltip, while the legend highlights the active selection.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/090607e2524f4b41a7c1616459049ca5?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}