{"version":"1.0","type":"rich","title":"World Countries Tree","description":"This visualization displays the hierarchical structure of world countries as a tree diagram, using a horizontal layout where each node represents a country, region, or subregion. The visualization uses D3.js v5 with the `d3.tree` layout and `d3.hierarchy` functions to compute node positions and link paths, rendered as SVG with `d3.linkHorizontal`. Font sizes scale inversely with node depth, and zooming is enabled via `d3.zoom` and event transforms. The data is loaded from a JSON file containing nested country groupings.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/65c65e494b684839a424132f98141f13?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}