Since Unholy Host’s color palette is based on Lady D from Resident Evil Village, and Lady D is effectively a vampire, I think it would be appropriate if the color of the liquid in the glass for the It’s Apple Juice move would be red, like blood. The game already is rated for “infrequent alcohol references”, so even if someone were to consider red liquid in a glass to be an allusion to wine, that should be in the bounds of what’s considered appropriate for this game. Also Dahlia is well past the legal drinking age, anyway. I think it would be much more fitting for the pallete if the liquid was red.