{"version":"1.0","type":"rich","title":"Choropleth Map with Interactive Filtering","description":"A choropleth map of global economies uses ordinal color encoding, with a legend that lets users click color swatches to filter countries by economic group. Non-matching countries dim to low opacity, and the selected legend item highlights its corresponding category on the map. The visualization is built with D3 v5, using `d3.geoPath` and `geoNaturalEarth1` for map projection, `scaleOrdinal` with `schemeSpectral` for colors, and `zoom` for panning. Data comes from TopoJSON world-atlas files, with SVG rendering for all elements.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/5daae0d7a92b4778bb87f5484ea4e999?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}