def toRGB(hex_color_str):
	"""
	transform hex color string to integer tuple.
	e.g. r,g,b = toRGB('0xFFFFFF')
	"""
	
	return int(hex_color_str[2:4],16)/255., int(hex_color_str[4:6],16)/255., int(hex_color_str[6:8],16)/255.