I just noticed this recently. In reviews, some words/phrases are now highlighted in gold. Is this unique to the Genki path, or a new feature?
As far as I understand those appear when the answer is grammatically related/dependent on that phrase.
I just did a random search and I found this one where で is highlighted in a grammar point with て. There’s probably loads more.
Right like, when you are being tested on a grammar but are only expected to produce a truncated version of the overall grammar.