Synonyms that are in the dictionary are marked in green. Synonyms that are not in the dictionary are marked in red.
Antonyms that are in the dictionary are marked in green. Antonyms that are not in the dictionary are marked in red.
Additionally, the one-measure count-in helps you get ready for recording, just like live bands do when they perform.
Source: https://www.devicemag.com/how-to-turn-metronome-off-in-garageband/