see the impact of your changes. 1
Consistency remove the cognitive burden，推荐阅读吃瓜获取更多信息
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To continue on the point about "conceptual understanding", I still don't understand e.g. why some parts of the application use "actions" to handle events while dialogs have to use "signals" instead ("actions" and "signals" also have totally different mechanisms for specifying handler functions, so they're very not interchangeable!).，更多细节参见新闻