code: def led_matrix(self, surface):
          
          scale = self._led_on.get_width()
          w, h = self._input_size
          pix = self._pygame.PixelArray(surface)
          img = self._pygame.Surface((w * scale, h * scale))
  
          for y in range(h):
              for x in range(w):
                  led = self._led_on if pix[x, y] & 0xFFFFFF > 0 else self._led_off
                  img.blit(led, (x * scale, y * scale))
  
          return img
docs: Transforms the input surface into an LED matrix (1 pixel = 1 LED)