public void SwapDisplay(int index)
 {
     StartCoroutine(Coroutines.Chain(
                        Coroutines.BlinkFastFast(screen.material, "_Color", 4.0f, 0.5f, 0.01f),
                        Coroutines.Wrap(() =>
     {
         this.index = index;
         if (displayingDistrict)
         {
             screen.material = matPriority[index];
         }
         else
         {
             screen.material = matDistrict[index];
         }
         displayingDistrict = !displayingDistrict;
     }
                                        )));
 }