This example displays the classic Iris dataset as an SVG scatter plot, using D3 version 6 to map petal length and width along the axes while coloring circles by species. It loads data from a remote CSV file and uses `d3.csv` for parsing, `d3.scaleLinear` for scales, and `d3.axisLeft`/`axisBottom` for ticks. Each circle’s fill is determined by a switch function, and sepal measurements are set as `rx` and `ry` attributes, though the radius remains constant. The visualization fills the viewport and applies custom axis labels and styling.