Cleaned up window base code

Assets/Scripts/Windows/BasicWindow.cs

@@ -1,13 +1,17 @@
-namespace InterfaceOff
+using UnityEngine;
+
+namespace InterfaceOff
 {
     public class BasicWindow : WindowBase
     {
         public override void OnWindowInstantiation()
         {
-            Components.InfoText.text = "Close";
+            /* Adds a random advert to the display */
+            Components.WindowImage.sprite = AdvertRegistry.GetRandomAdvert();
+            Components.WindowImage.color = new Color(1, 1, 1, 1);
         }
 
-        public override void OnWindowClicked()
+        public override void OnWindowCloseButtonClicked()
         {
             Destroy(gameObject);
         }