Let's make a face with D3.js
This example uses D3.v5 to draw a face entirely with SVG shapes. The code selects the existing SVG element with `select('svg')` and paints its background red via `svg.style('background-color', 'red')`. The rendering approach relies on D3's selection and styling APIs to manipulate the SVG canvas directly, though the specific facial shapes are not visible in the provided source. The page loads D3 from a CDN and runs the logic from a bundled JavaScript file.