You're being downvoted but you're right. If you're using a Window Manager (like i3) they are unlikely to come with utilities like this. You need to download an

You're being downvoted but you're right. If you're using a Window Manager (like i3) they are unlikely to come with utilities like this. You need to download another app (lxapperance for Xorg) or write a script to flip the appropriate settings.