This example visualizes the top 10 most populous countries using a stylized bar chart, with countries on the x-axis and migrant counts on the y-axis. The chart loads CSV data from a GitHub gist containing United Nations World Population Prospects 2019 data. Built with React and D3 v5, the visualization uses `d3.scaleBand` for the x-axis, `d3.scaleLinear` for the y-axis, and SVG `<rect>` elements via the `Marks` component. Axes are rendered using custom `AxisBottom` and `AxisLeft` components, with data formatting applied through `d3.format`.