{"version":"1.0","type":"rich","title":"Happiness Choropleth Map","description":"A choropleth map displays national happiness scores for the year 2017, using a yellow-orange-red sequential color scale. Countries without data appear gray. The map is rendered with SVG using D3’s `geoNaturalEarth1` projection and `geoPath`, with graticules and country interiors drawn from TopoJSON world atlas data. Happiness values are loaded from a CSV and matched to countries via ISO codes. A D3 color legend with circles and labels explains the scale, built with React components.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/f30982570cd54deb876ceccbc97bacae?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}