Its weird about the black cat thing. we have a volunteer who spends a lot of time with our cats. she is even starting to do complete behaviour evaluations on them (she can only do 1 or 2 each time she comes). she happened to do evaluations on 2 of our black cats who have been there over a year and we started discussing it. both of them are super friendly, would be great with kids, dogs, other cats...nothing bothers them - but noone even takes a second glance at them because they look ordinary i guess.
I hope Niko finds a home soon. he has been at the shelter much too long!