This example displays the Italian national flag as three vertical rectangles in green, white, and red. The code uses raw D3 v4 selection and append operations to create the fixed shapes, with hardcoded attributes for color, size, and position. Unlike a typical data-driven chart, it directly assigns fill, width, height, x, and y values to each rectangle rather than mapping from a dataset. The rectangles are appended to an SVG selection, demonstrating a simple static graphic without interaction or animation.