{"version":"1.0","type":"rich","title":"Choropleth Map with Interactive Filtering","description":"A choropleth map displays global economies by country, colored with a spectral ordinal scale. Users click legend items to filter the map, which highlights matching countries and dims others. The visualization uses D3 v5 with `geoPath`, `geoNaturalEarth1`, and a `zoom` interaction, alongside a custom color legend built with `scaleOrdinal` and `schemeSpectral`. Data merges TopoJSON country boundaries with TSV attributes loaded from the `world-atlas` package.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/4a0a284e2bfb4a239257b9ebd64b708c?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}