{"version":"1.0","type":"rich","title":"fresh block","description":"A donut chart displays the age distribution of a population from a CSV file, with seven categorical age groups shown as colored arcs and white labels. The visualization uses D3 v4’s `d3.pie` and `d3.arc` to generate the SVG paths, while `d3.scaleOrdinal` assigns a categorical color palette. Labels are positioned using `d3.arc` centroids, and the chart is centered within a 960×500 SVG canvas. Data is loaded asynchronously via `d3.csv`, and each arc’s fill color corresponds to its age category.","provider_name":"VizHub AI Studio","provider_url":"https://next.vizhub.com","html":"<iframe src=\"https://next.vizhub.com/viz/gist-1e1acc4bfc9c8d570697a0afe5994dfc?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"1\"></iframe>","width":960,"height":500,"cache_age":3600}