This interactive scatter plot visualizes the Iris Dataset, plotting petal length against sepal width and using color to distinguish species. The visualization includes a color legend that responds to hover events, dimming all data points except those matching the hovered species. Built with React and D3 v5, it uses `scaleLinear` for axes, `scaleOrdinal` for the categorical color mapping, and SVG elements rendered declaratively through React components. The code implements hover interactions by tracking state and applying opacity transitions via the `ColorLegend` component.