This example demonstrates an interactive flowchart editor that parses user-provided text input into a styled diagram, supporting custom states, colors, and hyperlinks on nodes. The visualization uses the flowchart.js library with Raphael for rendering, while D3 v5 handles DOM manipulation and layout of the interface. Users can edit the flowchart syntax in a textarea, click a button to draw the chart onto a canvas, and interact with nodes to trigger alerts or log events. The code defines custom flow states like "past," "current," and "approved" to visually distinguish different processing stages.