{"version":"1.0","type":"rich","title":"fcc Choropleth","description":"This choropleth shows the percentage of adults aged 25 and older with a bachelor's degree or higher across U.S. counties. The map uses color categories to represent educational attainment levels, with a legend dividing data into four ranges from 0-11% to 35% and above. It is built with D3 v5, converting TopoJSON county boundaries to GeoJSON via `topojson.feature` and rendering them as SVG paths using `d3.geoPath`. The underlying data comes from a USDA Economic Research Service dataset.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/660c94b6817144a39cc8fb771b23a4ab?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}