{"version":"1.0","type":"rich","title":"Fork of D3 v5 Zoomable Sunburst","description":"This interactive sunburst chart visualizes hierarchical data from the `@observablehq/flare` dataset, showing nested categories as colored arcs that can be clicked to zoom into sub-hierarchies. Built with D3 v5 and rendered as SVG, the visualization uses `d3.partition`, `d3.hierarchy`, and `d3.arc` to compute layout geometry, with `d3.scaleOrdinal` and `d3.interpolateRainbow` for color mapping. Clicking an arc triggers a smooth 750ms transition via `transition.attrTween` that interpolates angular and radial coordinates, while labels rotate and fade based on visibility thresholds. Ancestor tooltips appear via appended `title` elements.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/1b8b1b5c66754d47ac014c65d3d86a90?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}