animalluv34, First of all let me tell YOU,
Dying any chick while it's still in the egg could defenitly harm the chick. Disturbing the integrity of the shell and potentially the membrane inside around the chick would not be good at all. Also, it is going to be extremely difficult to put a hole in the shell without cracking the entire shell or puncturing the actual chick inside. I would not try risking a living things life .. would you?
Would you inject food coloring into a baby while it's still the mothers womb?
I dout, so why try it on chicks? because there not human? that's a stupid reason.
In addition, poking holes in the egg shell allows infections to get into the baby chick. (No, it doesn't matter how small the whole is.)