{"version":"1.0","type":"rich","title":"World Countries Tree","description":"This visualization displays a hierarchical tree of world countries, organized by continent and subregion. It shows the structural relationships between geographical groupings, with each node labeled by name. The chart uses D3.js v5's `tree` layout and `hierarchy` functions to compute the graph, and `linkHorizontal` paths to draw the connecting lines. Data is loaded from a JSON file, and the visualization supports interactive zooming via a custom `zoom` event, with labels styled using the Playfair Display font.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/4bfe201ba96640d2a33b047cf62031f7?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}