This example demonstrates how to create basic geometric shapes in an SVG canvas, displaying circles and a rectangle with default black fills except for one red circle. The scene is rendered entirely through SVG markup, with external styling handled by a CSS stylesheet. The code uses the D3.js `select` function to update a message element’s text content, while also showcasing an ES6 module import from a local file. The page layout is set with CSS to remove margins and hide overflow.