Skat
In the German game of Skat the official tournament standard since the 1990s is to use a four-color deck known as a Turnierbild deck. In these decks, spades are green and diamonds are yellow, the clubs and hearts being respectively black and red as normal, which also reflects the suit order: clubs, spades, hearts, diamonds. This is intended as a compromise for players (typically from former East Germany) who prefer German suits over French; the green spades translate to leaves and the yellow diamonds to bells in the German suits.
Read more about this topic: Four-color Deck