unworking item colors

ClientProxy.java

package com.mattdahepic.telepacks.client;

import com.mattdahepic.telepacks.CommonProxy;
import com.mattdahepic.telepacks.TelePacks;
import com.mattdahepic.telepacks.item.ItemTelePack;
import net.minecraft.client.Minecraft;
import net.minecraft.client.renderer.block.model.ModelBakery;
import net.minecraft.client.renderer.block.model.ModelResourceLocation;
import net.minecraft.client.renderer.color.IItemColor;
import net.minecraft.item.EnumDyeColor;
import net.minecraft.item.ItemStack;
import net.minecraftforge.client.model.ModelLoader;
import net.minecraftforge.fml.relauncher.Side;
import net.minecraftforge.fml.relauncher.SideOnly;

@SideOnly(Side.CLIENT)
public class ClientProxy extends CommonProxy {
    @Override
    public void registerRenderers () {
        ModelBakery.registerItemVariants(TelePacks.telepack, new ModelResourceLocation("telepacks:telepack", "inventory"));
        ModelLoader.setCustomModelResourceLocation(TelePacks.telepack, 0, new ModelResourceLocation("telepacks:telepack", "inventory"));
        ModelLoader.setCustomModelResourceLocation(TelePacks.telepack, 1, new ModelResourceLocation("telepacks:telepack", "inventory"));
    }
    @Override
    public void registerColorHandler () {
        Minecraft.getMinecraft().getItemColors().registerItemColorHandler(TelePacks.telepack, TelePacks.telepack); //color handler for telepack is in ItemTelePack
    }
}

ItemTelePack.java

package com.mattdahepic.telepacks.item;

import com.mattdahepic.mdecore.helpers.PlayerHelper;
import com.mattdahepic.mdecore.helpers.TeleportHelper;
import net.minecraft.client.renderer.color.IItemColor;
import net.minecraft.creativetab.CreativeTabs;
import net.minecraft.entity.Entity;
import net.minecraft.entity.EntityLivingBase;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.item.EnumAction;
import net.minecraft.item.EnumDyeColor;
import net.minecraft.item.Item;
import net.minecraft.item.ItemStack;
import net.minecraft.nbt.NBTTagCompound;
import net.minecraft.server.management.PlayerList;
import net.minecraft.util.*;
import net.minecraft.util.text.TextComponentString;
import net.minecraft.util.text.TextFormatting;
import net.minecraft.world.World;
import net.minecraftforge.fml.relauncher.Side;
import net.minecraftforge.fml.relauncher.SideOnly;

import java.util.List;

public class ItemTelePack extends Item implements IItemColor {
    public static final String NAME = "telepack";
    public static final String COLOR_KEY = "packColor";
    public ItemTelePack () {
        super();
        this.setUnlocalizedName(NAME);
        this.setCreativeTab(CreativeTabs.tabAllSearch);
        this.setMaxStackSize(1);
        this.setHasSubtypes(true);
    }
    @Override
    public EnumAction getItemUseAction(ItemStack stack) {
        return EnumAction.BOW;
    }
    @Override
    public int getMaxItemUseDuration(ItemStack stack) {
        return 7;
    }
    @Override
    @SideOnly(Side.CLIENT)
    public boolean hasEffect(ItemStack stack) {
        return canCrossDimensions(stack);
    }
    @Override
    public ActionResult<ItemStack> onItemRightClick(ItemStack stack, World world, EntityPlayer player, EnumHand hand) {
        player.setActiveHand(hand);
        return new ActionResult<ItemStack>(EnumActionResult.SUCCESS,stack);
    }
    @Override
    public void onPlayerStoppedUsing (ItemStack stack, World world, EntityLivingBase entity, int timeLeft) {
        if (!world.isRemote && entity instanceof EntityPlayer) {
            if (entity.isSneaking() && timeLeft != 0) {
                setStoredLocation((EntityPlayer)entity,stack,new TelePackLocation(entity.posX,entity.posY, entity.posZ,entity.dimension));
            } else {
                entity.playSound(new SoundEvent(new ResourceLocation("minecraft","random.fizz")),1f,1f);
                ((EntityPlayer)entity).getCooldownTracker().setCooldown(this,3);
            }
        }
    }
    @Override
    public ItemStack onItemUseFinish(ItemStack stack, World world, EntityLivingBase entity) {
        if (stack.hasTagCompound() && !world.isRemote && entity instanceof EntityPlayer) {
            if (!entity.isSneaking()) {
                if (hasValidLocation(stack)) {
                    TelePackLocation loc = getStoredLocation(stack);
                    if (canCrossDimensions(stack) && loc.dimension != ((EntityPlayer)entity).dimension) {
                        PlayerList list = entity.getServer().getPlayerList();
                        TeleportHelper.transferPlayerToDimension(PlayerHelper.getPlayerFromUsername(((EntityPlayer)entity).getDisplayNameString()), loc.dimension, list);
                    }
                    if (loc.dimension == entity.dimension) {
                        entity.setPositionAndUpdate(loc.x+.5f, loc.y+.25f, loc.z+.5f);
                        ((EntityPlayer)entity).getCooldownTracker().setCooldown(this, canCrossDimensions(stack) ? 240 : 90);
                        entity.playSound(new SoundEvent(new ResourceLocation("minecraft:mob.enderman.portal")), 1f, 1f);
                    } else {
                        ((EntityPlayer)entity).addChatComponentMessage(new TextComponentString(TextFormatting.YELLOW + "The technology in this pack is too primitive to cross the dimensional gap."));
                    }
                } else {
                    ((EntityPlayer)entity).addChatComponentMessage(new TextComponentString("No location set!"));
                }
            }
        }
        return stack;
    }
    @Override
    public String getUnlocalizedName (ItemStack stack) {
        switch (stack.getMetadata()) {
            case 0:
                return super.getUnlocalizedName(stack)+"_basic";
            case 1:
                return super.getUnlocalizedName(stack)+"_advanced";
        }
        return null;
    }
    @Override
    public void onUpdate(ItemStack stack, World world, Entity entity, int slot, boolean isSelected) {
        if (!stack.hasTagCompound()) {
            stack.setTagCompound(new NBTTagCompound());
        }
    }
    @Override
    @SideOnly(Side.CLIENT)
    @SuppressWarnings("unchecked")
    public void addInformation(ItemStack stack, EntityPlayer playerIn, List tooltip, boolean advanced) {
        if (stack.hasTagCompound()) {
            if (hasValidLocation(stack)) {
                TelePackLocation loc = getStoredLocation(stack);
                tooltip.add("Location set at ("+loc.x+","+loc.y+","+loc.z+")");
                tooltip.add("In the dimension "+loc.dimension+".");
                return;
            }
        }
        tooltip.add("No location set.");
    }
    @Override
    @SideOnly(Side.CLIENT)
    @SuppressWarnings("unchecked")
    public void getSubItems(Item item, CreativeTabs tab, List list) {
        list.add(new ItemStack(item,1,0));
        list.add(new ItemStack(item,1,1));
    }

    @Override
    @SideOnly(Side.CLIENT)
    public int getColorFromItemstack(ItemStack stack, int tintIndex) {
        if (!stack.getTagCompound().hasKey(ItemTelePack.COLOR_KEY)) stack.getTagCompound().setInteger(ItemTelePack.COLOR_KEY, EnumDyeColor.LIME.getMapColor().colorIndex);
        return stack.getTagCompound().getInteger(ItemTelePack.COLOR_KEY);
    }

  //...
}

mod.java

package com.mattdahepic.telepacks;

import com.mattdahepic.telepacks.item.ItemTelePack;
import net.minecraft.item.Item;
import net.minecraftforge.common.MinecraftForge;
import net.minecraftforge.fml.common.FMLCommonHandler;
import net.minecraftforge.fml.common.Mod;
import net.minecraftforge.fml.common.SidedProxy;
import net.minecraftforge.fml.common.event.FMLInitializationEvent;
import net.minecraftforge.fml.common.event.FMLPreInitializationEvent;
import net.minecraftforge.fml.common.eventhandler.SubscribeEvent;
import net.minecraftforge.fml.common.gameevent.PlayerEvent;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;

@Mod(modid = TelePacks.MODID,name = TelePacks.NAME,version = TelePacks.VERSION,dependencies = TelePacks.DEPENDENCIES,updateJSON = TelePacks.UPDATE_JSON)
public class TelePacks {
  
    //...

    @Mod.EventHandler
    public void load (FMLPreInitializationEvent e) {
        proxy.registerItems();
        proxy.registerRenderers();
    }
    @Mod.EventHandler
    public void init (FMLInitializationEvent e) {
        proxy.registerRecipes();
        proxy.registerColorHandler();
    }
}