This example shows a simple SVG face built from two circles with a black border and eye, rendered on a yellow background. It demonstrates basic D3 v7 selection and attribute-setting methods, using `select` on the existing SVG element and appending circle shapes with explicit `cx`, `cy`, `r`, `fill`, and `stroke` attributes. The code reads the SVG’s height and width attributes to position the shapes relative to the viewport center. The visualization relies entirely on static SVG markup created programmatically, with no data binding or interactive behavior.