Black screws on black tarmac (without a cats eyes)

Why do the screws at that fasten the doorbell to its bracket have to be black. I have had to charge my 2nd Gen doorbel twice but have now lost all the screws that came with the thing. It could be that I'm a sausage-fingered-blind old fool but when your trying to remove or replace these fidly little screws at the bottom of the doorbell gravity is not your friend! Could I suggest that these screws might be white or even luminous to stand out against the black tarmac that hides them at the earliest convience.