{"version":"1.0","type":"rich","title":"choropleth map - interactive filtering (Fork of dataviz 2018 #21)","description":"This interactive choropleth map visualizes countries colored by economic grouping using an ordinal color scale. Users can click a legend swatch to highlight matching countries, dimming others, or click the map background to clear the filter. The visualization is built with D3 v5, using `geoNaturalEarth1` and `geoPath` for map projections and `scaleOrdinal` for colors. Data comes from the world-atlas TopoJSON and TSV files, with rendering in SVG.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/15a85b5755d7465189e7f012a543ac87?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}