{"version":"1.0","type":"rich","title":"Q2","description":"This example displays a hierarchical tree of food categories, from the root \"Food\" down to specific items like \"Almonds\" and \"Broccoli.\" It uses D3 v7's `d3.stratify` and `d3.tree` layouts to compute node positions, with horizontal curved links drawn via `d3.linkHorizontal`. Nodes are rendered as SVG circles colored by depth, with labels positioned to the right for leaves and left for internal nodes. A legend at the top-left explains the color mapping for each hierarchy layer.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/2fb076d8788247ce877e522de61174fd?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}