{"version":"1.0","type":"rich","title":"Refactored UN Populations","description":"This bar chart displays the top 10 countries by population from a 2020 UN dataset, with country names on the y-axis and population counts formatted in billions on the x-axis. The visualization uses React to render SVG elements while D3 v6 utilities handle data fetching via `csv`, scales via `scaleBand` and `scaleLinear`, and formatting with `format`. Each bar includes a native SVG `<title>` tooltip showing the precise population value. The code is refactored into reusable components for axes and marks, with a custom React hook (`useFetch`) managing the asynchronous data loading.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/85ec26e692084a7c95e75478e85c0525?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}