This example demonstrates how to set up a D3.js visualization within a VizHub project, loading D3 v5 from UNPKG and using ES6 module imports. It selects an SVG element with `d3.select` and applies a green background, while a separate local module exports JSON data representing car listings. The code highlights modular structure, combining external D3 imports with custom local modules, and renders to an SVG canvas within a minimal HTML page.