This example showcases a static composition of basic geometric shapes rendered as SVG elements. It begins by selecting the SVG canvas and appending a series of shapes, including two rectangles and two circles, each with hardcoded coordinates and fill colors. The visualization relies on the D3.js library (v7) to manipulate the SVG, using methods like `append` and `attr` to define the shapes' properties. The rendering is done entirely through SVG, with no external data source, and the layout is fixed, not responsive to any user interaction.