Zero cmc non-artifact cards always colorless?

[Fathermiles]

I started a new binder with cards like Ancestral Vision and Slaughter Pact and sorted by color. Both of those cards are considered colorless rather than blue and black, respectively. This seems like a minor bug.

[Piotr]

A mere nuisance, not a minor bug Minor bug would be roughly mosquito size.

Thanks for reporting!

[Piotr]

Who would be interested in fixing nuisances like this by themselves?

http://imtgapp.com/forum/index.php?action=imtg;area=card;name=breeding%20pool;mode=1