{"version":"1.0","type":"rich","title":"Fork of Choropleth Map with Interactive Filtering","description":"A choropleth map colors countries by economic classification using an ordinal scale derived from `d3.scaleOrdinal` and the `schemeSpectral` color scheme. Clicking a legend item filters the map, dimming non-matching countries and increasing the stroke width of the highlighted one. Hovering over the legend dims other items. The map uses `d3.geoNaturalEarth1` projection, `d3.geoPath` for rendering, and `d3.zoom` for panning. Data comes from the World Atlas TopoJSON and TSV files, processed with `topojson.feature`.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/2e80aada7fd547cb9bfffd680baca482?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}