This example visualizes the classic Iris Dataset, plotting petal length against sepal width for three iris species, distinguished by color through a React-based SVG rendering. A color legend on the right allows interactive filtering; hovering over a legend item fades non-matching points while keeping the selected species fully opaque. The visualization uses D3 v5 scales and axes (`scaleLinear`, `scaleOrdinal`, `AxisBottom`, `AxisLeft`) within a React component structure, with data loaded asynchronously via `d3.csv`. The styled axes and labels use the Poppins font, and tooltips appear on individual points via SVG `<title>` elements.