A red SVG face is drawn using D3.js, with the entire background set to red via `svg.style('background-color', 'red')`. The visualization relies on D3’s `select` API to target the SVG element and apply styling directly. Rendered in a React framework, the example uses an SVG container with fixed dimensions (960 by 500 pixels) and D3 version 5. The face itself is not explicitly defined in the provided code, showing only the red background and SVG setup.