colorlog.ColoredFormatter is a formatter for use with Python's logging module that outputs records using terminal colors. The ColoredFormatter class takes several arguments: - format: The format string used to output the message (required). - datefmt: An optional date format passed to the base class. See logging.Formatter. - reset: Implicitly adds a color reset code to the message output, unless the output already ends with one. Defaults to True. - log_colors: A mapping of record level names to color names. The defaults can be found in colorlog.default_log_colors. - secondary_log_colors: A mapping of names to log_colors style mappings, defining additional colors that can be used in format strings. - style: Available on Python 3.2 and above. See logging.Formatter.