This interactive scatter plot visualizes the Iris dataset, plotting days since the first attack against distance from it, with points colored by region. Hovering over a region in the color legend highlights matching data points and fades the rest, providing a clear way to explore categorical groupings. Built with React and D3 v5, the visualization uses `scaleLinear` for axes, `scaleOrdinal` for colors, and a custom `ColorLegend` component that tracks hover state.