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Display feedback and diagnostic messages - that is, messages that are printed to [stderr](https://www.jstorimer.com/blogs/workingwithcode/7766119-when-to-use-stderr-instead-of-stdout) and, as such, are not part of s program's output - stylized through [control characters](https://en.m.wikipedia.org/wiki/Control_character). Text placed between pipe characters, i.e. `|`, will be displayed in **bold**. Messages come in the following flavors:
-`win`, a confirmation message.
-`wrn`, a warning message.
-`err`, an error message. It is a good practice to prefix your error message with the name of the command that failed, such as `command: error message`.
-`dim`, a dimmed message. Commonly used to point out some activity in the background.