{"version":"1.0","type":"rich","title":"World Country Tiny Tree","description":"This visualization presents a hierarchical tree of world countries organized by continent and subregion, with each leaf node labeled by country name. The layout uses D3 v4’s `d3.tree` and `d3.hierarchy` to position nodes in a classic dendrogram, while SVG paths connect parents to children with a cubic Bézier diagonal for deeper levels. Node circles are styled internally versus leaves, and country labels appear beside each node. The data comes from the included `all_countries_2015.json` file, rendered in a fixed 960×2000 SVG canvas.","provider_name":"VizHub AI Studio","provider_url":"https://next.vizhub.com","html":"<iframe src=\"https://next.vizhub.com/viz/gist-03df31f109bea52fa6bab25b4d92888a?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"1\"></iframe>","width":960,"height":500,"cache_age":3600}