This fork of a pie chart visualizes the latitude and longitude of country locations from a CSV dataset. The code uses d3.pie, d3.arc, and d3.scaleOrdinal with schemeCategory10 to create the SVG segments, while loading data via d3.csv. It also generates a legend with color swatches and labels, and tooltips log values on mouseover. The chart is built in a React project using d3 v5, rendering to an SVG element.