Fix typos/small mistakes

lighting.py

@@ -41,14 +41,14 @@ class ColorManager(Thread):
  self.current_rand = -randint(1, 8)
  self.current_color = Color(80, 255, self.current_color.blue)
  elif self.current_color.green + self.current_rand < 0:
- rand = randint(1, 8)
+ self.current_rand = randint(1, 8)
  self.current_color = Color(0, 255, self.current_color.blue)
  else:
- self.current_color.green += rand
+ self.current_color.green += self.current_rand
  self.current_color.red = 255
  self.current_color.blue = self.unscaled_blue * self.current_color.green//255
  if self.unscaled_blue < 100 :
- self.unscaled_blue++
+ self.unscaled_blue += 1
 
  def fade(self):
  if self.current_color.red > 0: