You're late because I countered that argument multiple times already.
Those are all scene taken from the manga. In the manga he is using blackened haki so that means there's a possibility his sword is coated with haki. If you wish to claim that's not true you have to prove that's not the case since it's common for characters to cope swords in haki.
In the manga his fingertips were coated with haki but that is missing from the vivre card and color scheme which means there is a mistake. Now you have to answer the question why was that left off. Even if they did intentionally leave it off that doesn't mean that his sword isn't coated in haki.
Finally we don't have any info in the manga or in any official source information claim the sword is a black blade. We have seen GB fight multiple times and nobody has ever made a single comment about his sword being black.
There is zero proof GB has a black blade.
You sound lousy as shit actually
Greenbull doesn’t even use his sword why would it be walking around coated in Haki? He coated his finger tips sure, but his whole body didn’t turn black which means he can control which he coats with Haki
does Greenbull walk around with a haki coated blade but he just doesn’t ever use it? Doesn’t really make sense does it…
It’s a permanent black blade, accept it.