Stylized Bar Chart
This stylized bar chart displays the top 10 most populous countries from the United Nations World Population Prospects 2019 dataset, using a horizontal bar layout with margins and a custom Poppins typeface. The visualization shows population values along the x-axis with tick labels formatted using d3.format to abbreviate billions as "B". Population data is loaded asynchronously via d3.csv and sorted by slicing the first ten rows. The chart is built with React components, rendering axes and rect marks as SVG elements, with d3.scaleBand for the categorical y-axis and d3.scaleLinear for the quantitative x-axis.