def pretty_diff_str(title, oA, oB):
    """
    Generate a pretty diff of two dicts.

    :param title: the title/heading for the line
    :type title: string
    :param oA: first object
    :param oB: second object
    :returns: list of lines, each a list of 3 columns
    :rtype: list of lists
    """
    if oA != oB:
        return [[title, oA, oB, True]]
    return [[title, oA, oB]]