Changed background color.

intro.py

@@ -16,6 +16,7 @@ class IntroState(BaseState):
       screen_center = self.get_screen_center()
       self.rectangle = pygame.Rect(screen_center[0] - 50, screen_center[1] - 50, 100, 100)
       self.next_transition = VALID_STATES['STAY']
+      self.background_color = (139, 210, 228)
 
    def input(self):
       for event in pygame.event.get():
@@ -40,4 +41,5 @@ class IntroState(BaseState):
       return self.next_transition
           
    def render(self, canvas):
+      canvas.fill(self.background_color)
       pygame.draw.rect(canvas, (255, 255, 255), self.rectangle)