This interactive bar chart visualizes population density across divisions of Bangladesh, with bars sized by area in square kilometers and colored by district. The visualization uses the Vega-Lite API’s `markBar` encoding with x and y quantitative fields, while tooltips show district names. Data is loaded asynchronously via `d3.csv` from a Gist hosting the UCI Auto MPG dataset. Custom axis styling and tooltip styling are applied through a config object, and the chart renders with an SVG renderer via `vl.register`, adapting to the full window viewport.