{
    // theme of the game, if None, default theme will be used.
    // default theme is automatically loaded from <game config>/themes/default_theme.json5,
    // which is generated when none is found.
    //
    // Othwerwise, you can specify your own theme file, which will be loaded
    // from the <game config>/themes directory. It can be either .json[5] or .toml format.
    "theme": "default_theme.json5",

    // logging levels for different logging mechanisms in the game.
    // - valid levels:
    //  - trace
    //  - debug
    //  - info
    //  - warn
    //  - error
    // 
    // messages in the UI
    "logging_level": "warn",
    // messages in the UI if debug mode is enabled
    "debug_logging_level": "debug",
    // messages in the log file
    "file_logging_level": "info",

    // player will move only one space at the time,
    // otherwise it will move until other possible move
    "slow": false,
    // slow: true,

    // in tower maze, player will automatically move up when possible
    "disable_tower_auto_up": false,
    // disable_tower_auto_up: true,

    // when maze cannot fit on the screen
    // camera_mode:
    // - valid modes
    //  - CloseFollow - player will always be centered
    //  - EdgeFollow(horizontal margin, vertical margin)
    //     player will move on screen, but when he hits margin
    //     he will be centered on that axis.
    //     margin can be either relative (0.0 - 0.5 or absolute
    //     when it's fractional, it's relative to the viewport size
    //     when it's absolute, it's in characters
    "camera_mode": {
        "mode": "CloseFollow"
    },
    // "camera_mode": {
    //    "mode": "EdgeFollow",
    //    "x": 10,
    //    "y": 5
    // }
    // "camera_mode": {
    //   "mode": "EdgeFollow",
    //   "x": 0.25,
    //   "y": 0.25
    // },

    // smoothing of the camera movement, values 0.5 - 1.0
    "camera_smoothing": 0.8,

    // player movement smoothing, values 0.5 - 1.0
    "player_smoothing": 0.5,

    // viewport margin, space between edges of the screen and maze/dpad
    // value is a tuple of two integeres, horizontal and vertical margin
    "viewport_margin": [4, 3],

    // enable mouse input
    "enable_mouse": true,

    // enable dpad, it is virtual controller for mobile devices
    "enable_dpad": false,

    // default algorithm used for maze generation
    "default_maze_gen_algo": "RandomKruskals",
    // "default_maze_gen_algo": DepthFirstSearch,

    // skip prompt for maze generation algorithm
    "dont_ask_for_maze_algo": true,
    // "dont_ask_for_maze_algo": false,

    // update check interval
    // - valid intervals:
    //  - Never
    //  - Daily
    //  - Weekly
    //  - Monthly
    //  - Yearly
    //  - Always
    "update_check_interval": "Daily",

    // display update check errors,
    // when false display on successfully found new version
    "display_update_check_errors": true,
    // "display_update_check_errors": false,

    // enable audio, if false, no audio will be played
    "enable_audio": true,
    // "enable_audio": false,

    // audio volume, 0.0 - 1.0, value is clamped, must not be NaN
    "audio_volume": 0.5,

    // enable music, needs to have audio enabled
    "enable_music": true,
    // "enable_music": false,

    // music volume, 0.0 - 1.0, value is clamped, must not be NaN
    "music_volume": 0.5,

    // lists of maze presets
    "presets": [
        // Preset:
        // - title - title of the preset
        // - size - array of 3 integers, width, height, depth
        // - maze_type - type of the maze
        //   - "normal" - normal maze
        //   - "tower" - tower
        // - default - selected by default in menu
        // - type - type of the preset
        //   - "simple" - basic generation config
        //   - "regions" - specify generation regions or how to choose them
        // - regions - array of regions containing mask and parameters, used when `type` is "regions"
        //   - mask - mask of the region, can have formats:
        //      - base64:   { "size": [width, height, depth], "base64": "<base64 of bit array>" }
        //      - 2d array: [[bool | int, bool | int, ...], [bool | int, bool | int, ...], ...]
        //      - 3d array: [[[bool | int, bool | int, ...], [bool | int, bool | int, ...], ...], ...]
        //   - region_type - type of the region
        //     - generator - ["<generator_name>", { "param1": value1, ... }]
        //     - seed - optional seed for the generator, int
        // - active_region_heuristic - when neither `start` nor `end` are specified, this heuristic will be used to choose the region, can be either:
        //   - "biggest"
        //   - "random"
        //   - "first"
        //   - "last"
        {
            "title": "10x5",
            "size": [10, 5, 1],
            "default": true,
            "type": "simple",
        }, 
        {
            "title": "20x10",
            "size": [20, 10, 1],
            "type": "simple",
        },
        {
            "title": "60x30",
            "size": [60, 30, 1],
            "type": "simple",
        },
        {
            "title": "200x100",
            "size": [200, 100, 1],
            "type": "simple",
        },
        {
            "title": "6x3x3",
            "size": [6, 3, 3],
            "type": "simple",
        },
        {
            "title": "10x5x5",
            "size": [10, 5, 5],
            "type": "simple",
        },
        {
            "title": "12x6x5 Tower",
            "size": [12, 6, 5],
            "maze_type": "tower",
            "type": "simple",
        },
        {
            "title": "40x20x10 Tower",
            "size": [40, 20, 10],
            "maze_type": "tower",
            "type": "simple",
        }
    ]
}