"chapters"
    {
            1       "background_upward"
            2       "background_upward"
            3       "background_upward"
            4       "background_upward"
    }
    "BackgroundMaps"
    {
            1       "background_upward"
            2       "background_upward"
            3       "background_upward"
            4       "background_upward"
    }