This stacked bar chart displays the estimated 2021 food production across continents, with bars showing tonnage of various food categories. The visualization uses D3's `scaleOrdinal` with `schemeCategory10` for colors and `flatRollup` to reshape the CSV data from the Kaggle world food production dataset. The `stackedBarChart` function builds stacked rects using `stack()` and `scaleLinear` for x-values, while the adjacent `colorLegend` provides interactive highlighting, dimming non-hovered segments and drawing a stroke on the selected category.