private bool IsOptimized()
 {
     foreach (var oTarget in serializedObject.targetObjects)
     {
         var myTarget = oTarget as BbSprite;
         Debug.Assert(myTarget != null, "myTarget != null");
         if (!TextureSettings.IsAtlasOptimalForBbSprite(myTarget.Atlas))
         {
             return(false);
         }
     }
     return(true);
 }