def set_backlight(self, backlight):
        self.set_color(backlight, backlight, backlight)
Enable or disable the backlight.  If PWM is not enabled (default), a
dataset/ETHPy150Open adafruit/Adafruit_Python_CharLCD/Adafruit_CharLCD/Adafruit_CharLCD.py/Adafruit_RGBCharLCD.set_backlight