void OnValidate()
 {
     if (spriteFader == null)
     {
         spriteFader = GetComponent <Script_SpriteFadeOut>();
     }
     if (isParent)
     {
         spriteFader.isParent = true;
     }
     SetVisibilityTargetByTransform();
 }
 private void Fade(Script_SpriteFadeOut mySprite)
 {
     if (isFadeIn)
     {
         // mySprite.SetVisibility(false);
         StartCoroutine(mySprite.FadeInCo(null, fadeTime, alphaTarget));
     }
     else
     {
         // mySprite.SetVisibility(true);
         StartCoroutine(mySprite.FadeOutCo(null, fadeTime, alphaTarget));
     }
 }