{"version":"1.0","type":"rich","title":"World Countries Tree","description":"This visualization displays a hierarchical tree of world countries, organized by continent and then by subregion. The tree layout uses a horizontal orientation, with country names rendered as text nodes that decrease in font size with increasing depth. The code employs D3 v5 APIs including `tree`, `hierarchy`, `linkHorizontal`, and `zoom` to construct the SVG visualization, with data loaded from a JSON file containing the regional groupings.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/766ffca10d9d4aea86009b3ff416ba14?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}