Beer colors
From blonde to green to dark.

Transcript
Max, Paul, and Jessica sit around the table.
Paul: ...and then there's a whole lot of beer styles that are named mostly after the color of the beer, like English brown, Amber, Irish Red...
Jessica: How do you call the green St Patrick's day beer?
Max: Slaughter in the kingdom of the leprechauns!
Paul: Disgusting marketing gimmick.
Jessica: Maybe that is ok in the Irish purity law?