{"version":"1.0","type":"rich","title":"Choropleth map with interactive filtering","description":"This choropleth map shows global economic data using a color-coded scale, where a legend allows users to filter countries by economy type. Clicking a legend entry dims non-matching countries and highlights those with the selected value; clicking again removes the filter. The visualization loads world country boundaries from TopoJSON and economic classifications from TSV data, then uses `d3.geoPath` with the Natural Earth projection to render the map. The interactive components are built on `d3.scaleOrdinal` for colors and a custom SVG-based legend with click handlers.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/20113b0b00b54132a3ed04d3563e3e08?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}