Today, 08:28 AM
I could imagine some sort of special barkeeper equipment that does this; A kind of holo-container that picks a special sprite corresponding to the drink inside (or the drink of which there are the most units). It could give drinks more of their own identity, and wouldn't be super difficult to implement, I reckon. Some other servers have glass sprites change depending on the drink inside, and making this a special container wouldn't interfere with the existing fluid color behavior.

Goonhub