This scatter plot visualizes the Iris Dataset, showing petal length against sepal width, with each point colored by species. An interactive color legend allows hovering over a species to highlight its corresponding data points while fading the others. Built with React and D3 v5, the visualization uses SVG for rendering, with scales and axes from `d3.scaleLinear` and `d3.scaleOrdinal`, and custom React components for marks and legends, interacting through hover state to update point opacity.