This stacked bar chart displays salary distributions across employment types, using two stacked segments per category to represent a binary breakdown of the data. The visualization loads CSV data from a GitHub gist via `d3.csv`, then applies `d3.stack()` to compute the stacked series, `d3.scaleBand()` for the categorical x-axis, and `d3.scaleLinear()` for the continuous y-axis. Bars are rendered as SVG `rect` elements with colors assigned by `d3.scaleOrdinal`, while axis labels are added through `d3.axisBottom` and `d3.axisLeft`.