This example shows a pie chart displaying city names and their corresponding values, with each slice labeled by its city and numeric value. The chart uses D3 version 6 to load data from a CSV file and render the visualization in SVG. The code constructs the pie with `d3.pie()`, generates arc paths with `d3.arc()`, and applies a color scale using `d3.scaleOrdinal()` with a quantized interpolator. Labels are positioned using arc centroids, and the chart includes white stroke separators between slices.