{"version":"1.0","type":"rich","title":"World Countries Tree","description":"This example presents a hierarchical tree of world countries organized by continent and subregion, rendered as an indented node-link diagram. The visualization uses the D3.js v5 library to parse a nested JSON structure, apply a tree layout, and draw the connections with horizontal link paths. Text labels display country names with depth-dependent font sizes, and the entire graph supports zoom and pan interactions via the `d3.zoom` module. The SVG output is styled with a custom serif font and a teal stroke for the linking paths.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/168138f89b7e4545b250bea3dd3b5552?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}