This fork of ice8 displays an interactive family tree from a JSON dataset, rendered as a collapsible hierarchy of circles and labels. Clicking a node toggles its children, animating the layout with smooth transitions. The visualization uses d3.layout.tree and d3.svg.diagonal to position and draw links, with SVG elements styled via CSS. Data loads from an external qn_tree.json file, and node expansion/collapse is handled through custom click events and update functions.