@Nichole13 do you want the cats to be rotated 90 degrees? I think you should be able to relatively easily do that. If you look at the pattern, you see that the string order is abababab... and all knots are either fb or bf. With this technique you can easily knot any two-colour design.
I also have a black cat so this is awesome and I’m definitely gonna make it! I’m thinking about hot-glueing or mayb sewing in a tiny pink button for their little noses 😁