2 colors are in the name of this drink, equal parts ale & stout or porter
[DOC] [TLE] Five Beer Cocktail Recipes and Food Pairings | Epicurious.com ... [PAR] This includes a dark stout like Guinness with a light-colored ale in the Black and 
... a Shandygaff, this drink mixes equal parts beer with either ginger ale, ginger 
beer ...