"Positive climb" always makes me smile. A climb is
always positive; otherwise, it would be a descent... unless you call that a "negative climb"!
So in my case, "positive rate" it is. And yes, that means increasing VSI, ALT, and IAS. Plus of course the houses getting smaller (if in VMC)...
But at the end of the day it's just one manufacturer trying to be clever...
Cheers