This example shows a concentric ring visualization of market segmentation data, progressing from total population inward to target market. Each circle is labeled with its category, with font sizes decreasing for inner rings. The code uses d3 v5 to bind an array of text objects, rendering SVG circles with d3.scaleOrdinal and a sequential orange color scheme. Text elements are positioned using the same radius calculations, while styles.css controls basic layout and typography.