This stacked bar chart visualizes the distribution of IMDb rating categories across six video game genres, using percentages that sum to 100% for each genre. The D3.js v7 code builds the horizontal bars with `d3.stack()` and `d3.scaleOrdinal` for color mapping, while hover interactions trigger tooltips showing precise percentage values via `d3.format`. The SVG rendering includes a linear x-axis for percentages and a band scale for genres, with data loaded from a CSV file displaying five rating brackets from below 5.0 to above 8.5.