//! <script>window.mermaid || document.write('<script src="https://unpkg.com/mermaid@9.1.5/dist/mermaid.min.js" crossorigin="anonymous"><\/script>')</script>
//! <div class="mermaid">
//! graph TD
//! A(todo) --> B(Does it have 'init' annotation?)
//! B -->|No| C(Apply default theme)
//! B -->|Yes| D(Apply customized theme)
//! </div>