Why? Yes.
v0.01, but it did what I wanted it to do. Totally untested on realistic images. It is very uncertain in its decisions, so sometimes you might have to drop the threshold to 0.05 or smth. Other times it will detect same navel three times with 0.85, go figure.
I might or might not improve it in the future, but no promises. Just did not want it to die after one use.