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This example shows static SVG shapes—a red circle and a green rectangle—positioned on a black background, demonstrating basic D3 selection and styling via `d3.select`. The page loads D3 v5 from UNPKG and uses a local ES6 module (`myMessage.js`) to export a message, though the message is not rendered in the visible output. The SVG is defined directly in `index.html`, while `index.js` applies the background color through a D3 selection. The code illustrates VizHub’s support for CDN imports, local modules, and inline SVG markup.