This visualization displays the distribution of survey responses by age, with bars colored by gender, using a bar chart. It is built with the Vega-Lite API, which registers Vega, Vega-Lite, and Vega-Tooltip to render the chart as SVG. The data is loaded asynchronously from a CSV file of NACRO member survey responses using d3.csv, and the chart dimensions adapt to the window size. A custom config object styles the axes and text with darker colors for readability.