It doesn't matter if a cat is black or white, so long as it catches mice.
No matter if it is a white cat or a black cat; as long as it can catch mice, it is a good cat.
I don’t care if the cat is black or white, I just want it to kill the mice.
Black cat or white cat: If it can catch mice, it's a good cat
Black cat, white cat, what does it matter as long as the cat catches mice?