This example shows a static family tree of Asian countries and regions, with hierarchical nodes arranged left-to-right and color-coded links and circles. The visualization uses D3.js v5 with a `d3.tree()` layout, mapping a nested data object to `d3.hierarchy` and rendering as SVG. Node sizes reflect the `value` property, while link strokes use the `level` color field, and circle fills use the `type` field, with text labels for each country.