This example visualizes the top 10 countries by deaths from air pollution in 2020 using a pie chart. It shows each country’s death count as a colored slice, with labels displaying values in thousands, alongside a legend listing countries and their corresponding numbers. The visualization uses D3 v5 APIs including `pie`, `arc`, `scaleOrdinal`, and `select` to generate SVG paths and text. Data is fetched as CSV from a GitHub gist, and the chart renders in an SVG container with a centered title.