{"version":"1.0","type":"rich","title":"Choropleth map","description":"This choropleth map visualizes COVID-19 cases, deaths, and recent 14-day case counts by country, using color to encode case numbers and hover tooltips to reveal detailed statistics. The map uses `d3.geoNaturalEarth1` projection with `d3.geoPath` to render world geography, while `d3.scaleOrdinal` with `schemeSpectral` assigns colors to case values. Data is loaded from a TSV file and TopoJSON world atlas, processed with `topojson.feature`, and rendered as SVG paths. A custom color legend and `d3.zoom` are also implemented.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/69b8f77e076046f6995b175b853d43af?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}