How to use the colored.back.GREY_11 function in colored

# -*- coding: utf-8 -*-
import re
import os
import logging
from colored import fore, back, style


STY_DESC = fore.LIGHT_GREEN + back.BLACK
STY_DESC_DEBUG = fore.SKY_BLUE_1 + back.BLACK + style.DIM
STY_USER = style.RESET + fore.WHITE + back.BLACK
STY_CURSOR = fore.LIGHT_GOLDENROD_2B + back.BLACK + style.BOLD
STY_RESP = fore.WHITE + back.MEDIUM_VIOLET_RED + style.BOLD
STY_RECIPIENT = fore.WHITE + back.DODGER_BLUE_2 + style.BOLD
# STY_RESP = fore.WHITE + back.GREY_11 + style.BOLD #+ style.NORMAL
STY_EMAIL = fore.WHITE + back.GREY_11 + style.BOLD


def setup_custom_logger(name):
    formatter = logging.Formatter(
        STY_DESC_DEBUG + '%(asctime)s - %(module)s - %(levelname)8s - %(message)s' +
            style.RESET, datefmt='%Y-%b-%d %H:%M:%S')

    handler = logging.StreamHandler()
    handler.setFormatter(formatter)

    logger = logging.getLogger(name)
    logger.setLevel(logging.WARN)
    logger.addHandler(handler)
    return logger

    # self.logger = logging.getLogger(self.BOTNAME)

# -----------------------
# END OF CUSTOMISED ITEMS
# -----------------------

CHANNEL_IN = 'screen'  # 'email' OR 'screen' OR 'online'
CHANNELS_OUT = {'email': False, 'online': False, 'screen': True}

STY_DESC = fore.LIGHT_GREEN + back.BLACK
STY_DESC_DEBUG = fore.SKY_BLUE_1 + back.BLACK + style.DIM
STY_HELP = fore.DARK_SLATE_GRAY_3 + back.BLACK
STY_HIDDEN = fore.BLACK + back.BLACK
STY_USER = style.RESET + fore.WHITE + back.BLACK
STY_CURSOR = fore.LIGHT_GOLDENROD_2B + back.BLACK + style.BOLD
STY_RESP = fore.WHITE + back.MEDIUM_VIOLET_RED + style.BOLD
# STY_RESP = fore.WHITE + back.GREY_11 + style.BOLD #+ style.NORMAL
STY_EMAIL = fore.WHITE + back.GREY_11 + style.BOLD
STY_RESP_SPECIAL = fore.WHITE + back.LIGHT_GOLDENROD_2B + style.BOLD
STY_HIGHLIGHT = fore.DEEP_PINK_4C + back.BLACK
STY_DRAW = fore.WHITE + back.BLACK + style.BOLD

logger = logging.getLogger(BOTNAME)
logger.setLevel(logging.DEBUG)
ch = logging.StreamHandler()
ch.setLevel(logging.WARN)
# ch.setLevel(logging.DEBUG)
formatter = logging.Formatter(
    STY_DESC_DEBUG + '%(asctime)s - %(name)s - %(levelname)8s - %(message)s' +
    style.RESET, datefmt='%Y-%b-%d %H:%M:%S')
ch.setFormatter(formatter)
logger.addHandler(ch)

numwords = {}