How do I change the font and color of GUI text?

I have a (still unfinished) script that shows text when you enter a trigger, but right now it's just white text in the Arial font. How do I change the color and the font to one of the fonts I imported. (And is it possible to add a shadow or outline to the text?)

 var buttonInRange;
 var buttonActivated;
 var amount : float = 0;
 
 var CamTimer : CamTimer;
 
 private var hasPlayed = false;
 
 function OnTriggerEnter (c : Collider)
 {
     buttonInRange = true;
 
 }
 function OnTriggerExit (c : Collider)
 {
     buttonInRange = false;
 
 }
 function OnGUI ()
 {
     if(buttonInRange == true)
     {
         GUI.Label (Rect (Screen.width/2-50, Screen.height/2-55, 120, 50), "Pick up battery");
         if (buttonInRange == true)
         {
         
         if (Input.GetKeyDown ("e"))
         {
             GUI.Label(Rect(155, 100, 75, 23), "Batteries: " + amount.ToString("1"));
         }
     
         }
     }
 
 }
 function Update ()
 {
     if (buttonInRange == true)
     {
         if (Input.GetKeyDown ("e"))
         {
             Destroy(gameObject);
             hasPlayed = true;
         }
     
     }
 
 }