How to dye leather armor?

Im trying to do it with nbt tags, but the armor is always black.

 

Show your code

 

PHP:

public function setNbt($item){
        if(($hasTag = $item->hasCompoundTag())){
            $tag = $item->getNamedTag();
        }else{
            $tag = new CompoundTag("", []);
        }
        $tag->customColor = new IntTag("customColor", 5); //or 6, 7, 8, 9...
        $item->setCompoundTag($tag);
        return $item;
    }


 

https://forums.pmmp.io/threads/give-dyed-leather-armor.2665/#post-28438
https://forums.pmmp.io/threads/how-to-dye-leather-armor.2862/#post-28944
https://github.com/pmmp/PocketMine-MP/blob/api3/blocks/src/pocketmine/item/Armor.php#L82L86

 

Look like 14 minute ago xD
https://github.com/pmmp/PocketMine-MP/commit/9da19b5f15e870d28eb03842b9ab6cc7add742db

 

He did that after I posted XD