This stacked bar chart displays the percentage distribution of IMDb movie ratings across different genres, with each bar segment representing a rating level. The visualization uses d3.stack() to compute stacked data and d3.scaleOrdinal for color encoding, rendering as SVG rectangles. Hovering over any segment reveals precise percentage values via a custom HTML tooltip with mouseover events. The chart uses d3.axisBottom and d3.scaleBand for categorical genre comparison, with data sourced from a CSV file containing movie ratings by genre.