Removing/changing the default icons

[luiguild]

Looking into the readme I found this gif, but how to do this? I'm trying to use the prefix text but the icon is still showing, I want to remove the icon or use mine, os just an emoji, like this:

I want to remove the '✔', is that possible?

[sindresorhus]

You can use stopAndPersist() with your own icon.