This interactive stacked bar chart visualizes general project funding items for 2018, segmented by the nature of institutions and broken down by sub-category. It uses D3.js (version 3.5.5) with the `d3.layout.stack` API to create the stacked layers, `d3.svg.axis` for axes, and `d3.legend.color` for the interactive legend. Hovering over the legend highlights a specific segment while fading the others, and a tooltip from `d3-tip` displays the exact sales value for each item. The chart is rendered as an SVG with a smooth animation.