Fork of D3 v5 Zoomable Sunburst
This sunburst visualization displays the hierarchical structure of the Flare data set, with each arc representing a node and its size proportional to the node’s value. Clicking an arc zooms in to show that node’s children, while clicking the center circle returns to the previous level. The visualization uses D3 v5’s `d3.hierarchy`, `d3.partition`, and `d3.arc` APIs, with smooth transitions animated via `transition.attrTween`. Color is assigned using `d3.scaleOrdinal` with a rainbow palette, and the SVG is rendered from the `flare.json` data file.