An interactive face is constructed from SVG elements, with the entire visualization set against a red background. The example demonstrates how D3’s `select` API binds to the existing `svg` element and applies direct style modifications, such as changing the background color. Using d3.v5 within a React framework, the code renders a static face illustration rather than a data-driven computation, focusing on the simple integration of D3’s selection and styling methods into a minimal HTML and CSS setup.