Do not use this app. It will change your dock however you like, sure. Then after 10 tries it will stop working. Yes, the so-called "free" version is acting like a trial. After many attempts, reinstalls of the app, restarts of the system, permissions repairs, I am still unable to use it to put my dock back to default. The app LOOKS like it's working, but the only thing it will do now (after deleting prefs and reinstalling the app) is to change the app indicators to something else...NOT back to the default Mac. I emailed the dev, but do not use this because it is NOT "free" and it is BUGGED bigtime. I really don't know what I'm going to do to get the dock back where it was, at least it did change the app indicator to something I can live with and not some stupid looking carrot.