Changing crop mark colours

Hey folks,

I’m not sure if this is the right place for this illustrator question, but I’ll give it a whirl and see what comes up.

I’m designing some book marks for my company. Because bookmark itself will be rather dark (black and dark reds), I’m wondering if there’s a way to change the crop mark colours from the default black to white (or something lighter) so I can see them better?

Any help on this would be appreciated.

Have a good day,



Well… I ended up finding what I was looking for. I anybody else needs to make similar changes do any of their work, you need to change the registration colour of the file you’re working on from default (black) to another colour.

Have a good one,