This example visualizes San Francisco temperature readings over a week using a stylized line chart. The chart plots time on the x-axis and temperature on the y-axis, with a smooth curved line rendered by d3.line() with curveNatural. The visualization is built with React components that call d3.scaleTime, d3.scaleLinear, and d3.extent to map the data. Axes are drawn using custom React components that generate SVG ticks and labels, with data loaded via d3.csv.