There might be a confusion between the two logos. Both have feathers as symbols. Although I think sometimes Haiku has leaves. The names are diffrent, but having a logo without the name is not good.
I’ve seen a screenshot where a feather is used as menu logo in Haiku. That is bad. Since in photoshop CS2 I think, the same blue feather is used as About logo.
From Wikipedia: haiku screnshot
I think in CS it was the green feather, but in CS2 is the blue one.
By the time Haiku becomes an adult, Adobe will have CS4 or something with a red feather. So all feather colours are bad.
And if it’s a leaf, what kind of leaf? I tries to looks like an oak leaf, but it needs bigger rounder crests. You have to know it’s a leaf. To me they look like feathers.
