Texture not Showing

package com.bold.tweaks;

import net.minecraft.block.Block;

import net.minecraft.block.material.Material;

import net.minecraft.item.Item;

import cpw.mods.fml.common.Mod;

import cpw.mods.fml.common.Mod.EventHandler;

import cpw.mods.fml.common.event.FMLInitializationEvent;

import cpw.mods.fml.common.event.FMLPostInitializationEvent;

import cpw.mods.fml.common.event.FMLPreInitializationEvent;

import cpw.mods.fml.common.registry.GameRegistry;

@Mod(modid = "Tweaks", name = "Tweaks", version = "1.0")

public class Tweaks {

public static Item itemLeaf;

public static Block blockCompDirt;

@EventHandler

public void preInit(FMLPreInitializationEvent event) {

//Item/Block init and registering

//Config handling

itemLeaf = new ItemLeaf().setUnlocalizedName("ItemLeaf").setTextureName("Tweaks:itemleaf");

blockCompDirt = new BlockCompDirt(Material.ground).setBlockName("BlockCompDirt");

GameRegistry.registerItem(itemLeaf, itemLeaf.getUnlocalizedName().substring(5));

GameRegistry.registerBlock(blockCompDirt, blockCompDirt.getUnlocalizedName().substring(5));

System.out.println(blockCompDirt.getUnlocalizedName().substring(5));

}

@EventHandler

public void init(FMLInitializationEvent event) {

//Proxy, TileEntity, entity, GUI and Packet Registering

}

@EventHandler

public void postInit(FMLPostInitializationEvent event) {

}

}