This fork of a styled bar chart visualizes the top 10 most populous countries in 2020, using data fetched from a GitHub-hosted UN Population CSV. The horizontal bars are rendered as SVG rectangles within a React component, with population values displayed on the x-axis using a custom tick formatter that converts units to billions. The chart leverages D3’s `scaleBand` and `scaleLinear` for layout, while tooltips show the exact population on hover. Styling is applied via CSS classes, including Inter font and distinct axis and mark colors.