Board Thread:Questions and Answers/@comment-28890226-20160703174330/@comment-3568954-20161104021306

Nen is only colored during Hatsu. so if Gon were to use Shu on say his fishing Rod and then used Hatsu it would be Yellow. just like if Hisoka used Shu on an onject but wasn't using his Hatsu it would be clear white like normal usage of Aura. if he were to use Shu on say a sword it would be white but if he activated his Hatsu IE transmuted his Nen into his bungee gum it would be purplish pink