Fork of World Countries Tree2
This visualization presents a hierarchical tree of world countries, organized by continent and subregion, using a static SVG layout. The code constructs the tree with `d3.tree` and `d3.hierarchy` from a nested JSON data source, rendering parent-child links with `linkHorizontal`. A zoom behavior enables pan and zoom interaction on the entire tree, while labels are styled with the Playfair Display font. The visualization demonstrates a straightforward approach to displaying geographical groupings without additional data encoding.