American Pale Ale (APA) is a style of American beer based at least originally on beers of the British pale ale tradition. They are pale to amber in color and generally their flavor and aroma is centered around the citric and pine character of American hops with caramel-like malt flavors and fruity esters from the ale yeast playing a supporting role. The style evolved in tandem with a renewed interest in ales and the insurgence of microbreweries in the United States which brought about a new focus on American hops.