This example shows a state diagram for a data loading process, depicting transitions from Idle to Loading, and from Loading to either Succeeded or Failed states. The visualization uses Mermaid.js to render the diagram, with JavaScript code that fetches the diagram definition from a separate file and renders it as SVG. The styling is customized with the Inconsolata monospace font, and the JavaScript API waits for document fonts to load before initializing Mermaid's rendering engine.