An empty SVG canvas awaits a face, defined entirely by the user’s interactive input rather than a static dataset. The example uses D3 v6’s selection and SVG rendering, with the `d3.select` API targeting the page’s `<svg>` element. No additional geometry or animation libraries are employed, leaving the drawing logic open for customization. The code provides a minimal React-free scaffold, where the face’s features—eyes, nose, mouth—would be appended as SVG shapes through D3’s data-binding methods, though no such drawing commands are present in the snippet.