Sprinkles are decoration but are still common in baking, and ginger is used for mostly savoury and biscuit baking.
Glad you enjoyed it regardless though :)
We like to put a lot of fruits instead of Chocolate and even when making Chocolate cake we mostly go with Cocoa Powder. We don't use ginger hitherto making a specific Ginger flavoured or spiced cake. Most of us even use Sunflower oil instead of Butter.
Though since I've start making professional authentic British cakes, I do understand the necessity of Lemon, Sprinkles and Chocolate