{"version":"1.0","type":"rich","title":"Choropleth Map Interactive Filtering","description":"This choropleth map displays world countries colored by economy category using an ordinal spectral color scale. Clicking a legend category filters the map by highlighting countries in that category and dimming all others; clicking again clears the filter. The visualization uses D3 v5 APIs including `geoNaturalEarth1`, `geoPath`, `zoom`, and `scaleOrdinal` on SVG paths, with country data loaded from the world-atlas TopoJSON and TSV files. A legend built with `colorLegend` updates opacity and triggers interactive filtering.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/fcf61721090b45a6ac0ef17b65d646ff?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}