How to switch between themes in ng-zorror library

[jdang67]

According to the documentation, ng-zorro has 4 differences themes.
@import "~ng-zorro-antd/ng-zorro-antd.css";
/@import "~ng-zorro-antd/ng-zorro-antd.dark.css";/
/@import "~ng-zorro-antd/ng-zorro-antd.compact.css";/
/@import "~ng-zorro-antd/ng-zorro-antd.aliyun.css";/

However, I have tried to swap them manually then restart and only the dark theme shows some effects, the rest does not do anything,

Any idea how to make the other themes work?

Jdang

[vthinkxie]

https://ng.ant.design/docs/customize-theme/en#theme-dynamic-switching

[KaranTrivedi]

Can you please provide a complete app example using this feature? I am having a very hard time building this out based on given documentation.