Tree
This example demonstrates a static tree diagram rendered as an SVG, showing a single rectangular node labeled “Value Share” positioned within a 960×500 canvas. The code uses D3.js v5 for DOM manipulation, selecting the SVG element and appending a group with a styled rectangle and text element. It relies on basic D3 selection and attribute methods, such as `d3.select` and `.append`, without loading external data or implementing interactive behavior.