Button Image 변경

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
 
public class SceneTestStageBtn : MonoBehaviour
{
    public Button btn;//버튼
    public Sprite img;//바꿀 이미지
 
    void Start()
    {
        this.btn.GetComponent<Image>().sprite = this.img;
    }
}
 

https://answers.unity.com/questions/1127944/changing-the-image-of-a-button-with-a-script.html