As far as I’m aware the reason for the green antiseptic paint is that it is incredibly difficult to wash off, so that even after (if) you’re cut down from the pole, you’re marked. It’s also known to cause chemical burns to eyes. They were using zelenka (the green paint) to make political statements previously (it was thrown on Poroshenko’s face before) and it was postulated (though I can’t confirm if this is the actual reasoning) that they specifically used green because that’s the colour of The Servant of the People (Zelensky’s party)
As far as I’m aware the reason for the green antiseptic paint is that it is incredibly difficult to wash off, so that even after (if) you’re cut down from the pole, you’re marked. It’s also known to cause chemical burns to eyes. They were using zelenka (the green paint) to make political statements previously (it was thrown on Poroshenko’s face before) and it was postulated (though I can’t confirm if this is the actual reasoning) that they specifically used green because that’s the colour of The Servant of the People (Zelensky’s party)