private void Start()
    {
        livesImage = GetComponentsInChildren <Image>();
        color      = new Color(1.0f, 1.0f, 1.0f, 1.0f);
        for (int i = 0; i < PlayerManager.instance.playerLives; i++)
        {
            livesImage[i].color = color;
        }

        StartCoroutine(canvasGroup.FadeOutCanvas(2f));
    }