Moved background color to BaseState.

state.py

@@ -7,6 +7,9 @@ VALID_STATES = { 'INTRO':0, 'MENU':1, 'IN_GAME':2, 'SCORE':3, 'STAY':4, 'QUIT':8
 
 # Parent class for game states.
 class BaseState:
+    def __init__(self):
+        self.background_color = (139, 210, 228)
+
     def input(self):
         """ Empty. Should handle PyGame input. """
         pass
@@ -17,7 +20,7 @@ class BaseState:
 
     def render(self, canvas):
         """ Empty. Should render this state on the canvas. """
-        pass
+        canvas.fill(self.background_color)
 
     def get_screen_center(self):
         return (pygame.display.Info().current_w / 2,