{"version":"1.0","type":"rich","title":"World Countries Tree","description":"This visualization presents a hierarchical tree of world countries, organized by continent and subregion, using a left-to-right layout. The code employs D3 v5’s `tree` layout and `hierarchy` to structure the JSON data, while `linkHorizontal` draws the connecting paths. Text labels are positioned based on the tree’s node coordinates, with font size varying by depth. Pan and zoom functionality is implemented via D3’s `zoom` behavior on the SVG container. The styling uses a serif font and teal-colored links, with a white text shadow to improve label readability over the paths.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/91a13a4359594d7c8812d2829ed25800?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}