{"version":"1.0","type":"rich","title":"World Countries Tree","description":"This visualization shows the hierarchical organization of world countries grouped by continent and subregion, with a radial tree layout that spaces nodes by depth. It uses a D3 v5 tree layout with horizontal links rendered as SVG paths and Playfair Display font labels. The text size decreases with each depth level, and a zoom behavior allows panning and scaling of the entire diagram. Data comes from a static JSON file containing nested country and region names.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/bbfa2b66806342459b96bee844bd6387?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}