{"version":"1.0","type":"rich","title":"Fork of World countries tree","description":"This example presents a hierarchical tree of world countries, with nodes arranged using a cluster layout from D3 v5. The visualization uses data2.json to display branches for continents and regions, with leaf nodes styled as colored rectangles scaled by percentage values. D3's `d3.cluster()` and `d3.hierarchy()` arrange the tree structure, while `d3.scaleLinear()` maps data values to rectangle heights. Text elements list category names, percentages, and associated keywords for each leaf, all rendered as SVG. Zooming and panning are enabled via `d3.zoom()`.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/45aac923605f458abcfb5861a71d70dd?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}