# Alerts and mermaid

Standard markdown features that `tttk` renders. They are not tttk syntax — see
`reference.md` for the element and role catalog.

## GitHub-style alerts

```markdown
> [!NOTE]
> 这是一条备注

> [!TIP]
> 提示内容

> [!IMPORTANT]
> 重要信息

> [!WARNING]
> 警告信息

> [!CAUTION]
> 危险警告
```

## Mermaid diagrams

Fenced `mermaid` blocks render as diagrams:

````markdown
```mermaid
graph TD
    A[开始] --> B{选择}
    B -->|选项 1| C[结果 1]
    B -->|选项 2| D[结果 2]
```
````

Supported: flowchart, sequenceDiagram, classDiagram, stateDiagram, erDiagram,
pie.