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.
I’ve seen screenshots of this view across Web forums, but never in actual play.
Source: https://www.newyorker.com/books/novellas/server-bryan-washington