code: func (s *SpheroDriver) GetRGB() []uint8 {
  	buf := s.getSyncResponse(s.craftPacket([]uint8{}, 0x02, 0x22))
  	if len(buf) == 9 {
  		return []uint8{buf[5], buf[6], buf[7]}
  	}
  	return []uint8{}
  }
docs: // GetRGB returns the current r, g, b value of the Sphero