{"version":"1.0","type":"rich","title":"Tree Visualization","description":"This example demonstrates a hierarchical tree visualization of car types, showing a root node labeled \"Car\" that branches into categories like Sedan, SUV, and Truck, each with two leaf nodes representing specific models. The visualization uses a color-coded encoding where the root is a red circle, the first-level categories are green squares, and the leaf nodes are blue triangles. Built with D3 version 5, the code constructs the tree layout using `d3.tree()` and `d3.hierarchy()`, and renders the SVG with cubic Bézier curves for links and distinct shapes per depth level. The data is a static JavaScript object with three levels of nesting.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/0b57fbc03b5a45f8a771211f9a7e6351?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}