或者更换消费者发送的事件主题也可以达到同样的效果。
Alternatively the same can be achieved by changing the topic to which consumer sends the original event.
通过更换一组服务订阅的主题，可以完全改变复合服务的实现。
By changing a set of services, subscribed to a particular topic, it is possible to completely change implementation of composite services.
我找不到一个方法去更换登陆后到显示桌面这个阶段的启动屏幕的主题。
I could find no way to theme the splash screen after login but before you hit the desktop.
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