I don't need to they are already there. Olive is the same color as a live mac. Blue is same as a dead mac. If you think stripes make a fish eat it then feel free to use a wide sharpie and draw to your hearts content.
I don't make mac patterns and you'll never see stuff like that out of me ever.
It doesn't increase the catch rate and I'VE NEVER ONCE SEEN A FISH STOP AND ANALYZE A LURE FOR MAC PATTERNS BEFORE HE ATE IT.
I won't even get into adding extra steps to paint.