{"version":"1.0","type":"rich","title":"Choropleth map","description":"This choropleth map displays global population data by country, with a threshold color scale using `d3.scaleThreshold` and `d3.schemeBlues`. The example loads world GeoJSON topology and population CSV data via `d3.json` and `d3.csv`, rendering the map with `d3.geoPath` and a Mercator projection. Interactive buttons allow switching between music genres, though the map itself does not respond to these selections. The visualization uses D3 v4 and SVG rendering within a 400x300 viewport.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/ec0dfaff6fd34fbbbca7c286beeb74ab?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}