- https://www.alibabacloud.com/help/zh/doc-detail/67830.htm
- https://www.iconfont.cn/user/detail?uid=6856114
- Blue theme: https://www.iconfont.cn/collections/detail?cid=21530
- Hitchhiker’s Guide to PlantUML: https://crashedmind.github.io/PlantUMLHitchhikersGuide/index.html