code: def get_darker_image(self):
          
          icon_pressed = self.icon.copy()
  
          for x in range(self.w):
              for y in range(self.h):
                  r, g, b, *_ = tuple(self.icon.get_at((x, y)))
                  const = 0.8
                  r = int(const * r)
                  g = int(const * g)
                  b = int(const * b)
                  icon_pressed.set_at((x, y), (r, g, b))
  
          return icon_pressed
docs: Returns an icon 80% more dark