Thyme, a coconut crust is my favorite way to eat key lime pie. I know it's adulterated but tastes so dang good. I like to put a little tequila in it too sometimes for a margarita pie. Yours sounds divine!
I prefer black, only flour and powdered sugar show on them. I disagree that black is impractical in a professional kitchen, if I can go between the dining room and kitchen without needing to change it saves me time.
Graham cracker crust,layer of ganache (microwave chips with cream or condensed milk), top with thick ed chocolate pudding mixed with whipped topping.. that makes a mock mousse topping. Or mix powdered sugar and peanut butter then fold in whipped topping for a choc pbutter pie