This stacked bar chart visualizes the percentage of IMDb rating levels across movie genres, revealing how genre influences audience ratings. Hovering over any bar segment displays a tooltip with the exact percentage for that rating category within the genre. The chart uses D3 v7’s `d3.stack()` to create stacked series, `d3.scaleBand()` for genre positioning, and `d3.scaleLinear()` for percentage values. Data is loaded from a CSV file and rendered as SVG rectangles with color-coded rating categories.