Look for clues in environment, e.g.:

        - https://bixense.com/clicolors/

        Arguments:
            envars:     Additional environment variables to check for
                        equality, i.e. ``MYAPP_COLOR_FORCED='1'``
        Returns:
            Bool:  Forced

def color_is_forced(**envars):
    ''' Look for clues in environment, e.g.:

        - https://bixense.com/clicolors/

        Arguments:
            envars:     Additional environment variables to check for
                        equality, i.e. ``MYAPP_COLOR_FORCED='1'``
        Returns:
            Bool:  Forced
    '''
    result = env.CLICOLOR_FORCE and env.CLICOLOR_FORCE != '0'
    log.debug('%s (CLICOLOR_FORCE=%s)', result, env.CLICOLOR_FORCE or '')

    for name, value in envars.items():
        envar = getattr(env, name)
        if envar.value == value:
            result = True
        log.debug('%s == %r: %r', name, value, result)

    return result