I've just got the Hoodoo bundle and am wondering how to change the colour of the sails which are an off-white colour. It doesn't reflect any of the colours of my flag or even the colours I dyed the ship to (for the spooky smoke) and yet I've seen ghostly galleons with different coloured sails, one red the other black. I'd like black sails myself but I have zero idea to get them! Any suggestions?