This example demonstrates a minimal SVG-based visualization: a yellow circle with a black outline representing a smiley face, containing two smaller circles for eyes. The code uses inline SVG elements within an HTML page, with no external JavaScript libraries. The rendering approach relies on basic SVG shapes—specifically `<circle>` elements—positioned via `cx` and `cy` attributes within a 960×500 viewport. The source is purely static markup, executed directly in the browser without any data-processing or animation logic.