GameObject.renderer

var renderer : Renderer

Description

The Renderer attached to this GameObject (Read Only). (null if there is none attached).

JavaScript
    var other : GameObject; 
other.renderer.material.color = Color.green;

using UnityEngine;
using System.Collections;

public class example : MonoBehaviour {
public GameObject other;
void Example() {
other.renderer.material.color = Color.green;
}
}

import UnityEngine
import System.Collections

class example(MonoBehaviour):

public other as GameObject

def Example():
other.renderer.material.color = Color.green