This interactive scatter plot visualizes the Iris dataset, mapping petal length and sepal width for different iris species. Hovering over a species in the color legend highlights matching data points and fades the rest, using `onMouseEnter` and `onMouseOut` events. Built with React and D3 v5, it renders as an SVG with `scaleLinear` for axes, `scaleOrdinal` for colors, and custom `AxisBottom`, `AxisLeft`, `Marks`, and `ColorLegend` components.