Whatever your reasons for doing so, changing file and folder icons on a Mac is not only possible but quite simple. Or you might want to mess with someone by changing all of their folder icons to files and vice versa.
Maybe you want a particular item to stand out among the rest. Perhaps you want to give your tired old user interface a makeover. You can likely come up with several good reasons to make such a change. For example, items in Finder are more customizable than they appear at first glance, and you can easily alter your Mac’s visual elements, such as file and folder icons. Even those familiar with macOS may not be aware of all the configuration options available.