themes - Unity3d Sprite change with prefabs -

ive question how change spirte images during runtime bunch of objects.

so made tiny racer 2d game, , therefore can choose differend themes. have option in integraded menu (not seperate scene).

my question: can switch sprites easy during runtime? ive made prefabs each track element - , changed sprites of prefabs, change gets visible, after scene reloaded. need avoid this.

has solution or hint how that?

thanks in advance!

code:

public class background_controller : monobehaviour { public camera maincamera; public color colornormal;   public gameobject[] prefabs;  public sprite[] normalsprites; public sprite[] tronsprites;  // use initialization void awake () {      switchbackgroundfunction();   }   public void switchbackground(string theme) {      switch(theme)     {          case "greenhell":             playerprefs.setstring("theme", "normal");              break;          case "neoncity":             playerprefs.setstring("theme", "tron");              break;      }      switchbackgroundfunction();   }  private void switchbackgroundfunction() {     int prefabcount = prefabs.length;      if (playerprefs.getstring("theme") == "normal")     {         maincamera.backgroundcolor = colornormal;          (int = 0; <= prefabcount - 1; i++)         {             prefabs[i].getcomponent<spriterenderer>().sprite = normalsprites[i];         }     }     if (playerprefs.getstring("theme") == "tron")     {         maincamera.backgroundcolor = color.black;          (int = 0; <= prefabcount - 1; i++)         {             prefabs[i].getcomponent<spriterenderer>().sprite = tronsprites[i];         }     }  }   // update called once per frame void update () {  } 

}

you can along following lines swap in sprite within resources folder during runtime.

sprite spr; spr = resources.load<sprite>("mysprite"); //insert name , file path sprite within resources folder getcomponent<spriterenderer>().sprite = spr; 

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