diff --git a/Pack/MKWFaraphel/ct_config.json b/Pack/MKWFaraphel/ct_config.json
index aaca3f5..fae4403 100644
--- a/Pack/MKWFaraphel/ct_config.json
+++ b/Pack/MKWFaraphel/ct_config.json
@@ -5,7 +5,7 @@
     "game_variant":"60",
     "region":5500,
     "cheat_region":20061,
-    "prefix_list":[
+    "tags_prefix":[
         "Wii U",
         "3DS",
         "DS",
@@ -57,7 +57,7 @@
         "GK7",
         "FGKR"
     ],
-    "suffix_list":[
+    "tags_suffix":[
         "Boost"
     ],
     "tags_color":{
@@ -114,7 +114,9 @@
         "GK3":"green",
         "GK7":"green"
     },
+
     "tag_retro":"Retro",
+
     "default_track":{
         "music":"T32",
         "special":"T32",
@@ -1953,8 +1955,8 @@
             ]
         }
     ],
-    "!default_sort":"name",
-    "tracks_list":[
+
+    "tracks":[
         {
             "name":"4IT Clown's Road",
             "author":[
diff --git a/source/mkw/ModConfig.py b/source/mkw/ModConfig.py
index e69de29..0e3a9ba 100644
--- a/source/mkw/ModConfig.py
+++ b/source/mkw/ModConfig.py
@@ -0,0 +1,81 @@
+from pathlib import Path
+from typing import Generator
+
+from source.mkw import Tag, Color
+from source.mkw.Track import Track
+import json
+
+
+# representation of the configuration of a mod
+class ModConfig:
+    __slots__ = ("name", "nickname", "variant", "region", "tags_prefix", "tags_suffix", "tag_retro",
+                 "default_track", "_tracks", "version", "original_track_prefix", "swap_original_order",
+                 "keep_original_track", "enable_random_cup")
+
+    def __init__(self, name: str, nickname: str = None, version: str = None, variant: str = None,
+                 tags_prefix: dict[Tag, Color] = None, tags_suffix: dict[Tag, Color] = None,
+                 region: dict[int] | int = None, tag_retro: Tag = None, default_track: "Track | TrackGroup" = None,
+                 tracks: list["Track | TrackGroup"] = None, original_track_prefix: bool = None,
+                 swap_original_order: bool = None, keep_original_track: bool = None, enable_random_cup: bool = None):
+
+        self.name: str = name
+        self.nickname: str = nickname if nickname is not None else name
+        self.version: str = version if version is not None else "1.0.0"
+        self.variant: str = variant if variant is not None else "01"
+        self.region: dict[int] | int = region if region is not None else 0
+
+        self.tags_prefix: dict[str] = tags_prefix if tags_prefix is not None else {}
+        self.tags_suffix: dict[str] = tags_suffix if tags_suffix is not None else {}
+        self.tag_retro: str = tag_retro if tag_retro is None else "Retro"
+
+        self.default_track: "Track | TrackGroup" = default_track if default_track is not None else None
+        self._tracks: list["Track | TrackGroup"] = tracks if tracks is not None else []
+
+        self.original_track_prefix: bool = original_track_prefix if original_track_prefix is not None else True
+        self.swap_original_order: bool = swap_original_order if swap_original_order is not None else True
+        self.keep_original_track: bool = keep_original_track if keep_original_track is not None else True
+        self.enable_random_cup: bool = enable_random_cup if enable_random_cup is not None else True
+
+    @classmethod
+    def from_dict(cls, config_dict: dict) -> "ModConfig":
+        """
+        Create a ModConfig from a dict
+        :param config_dict: dict containing the configuration
+        :return: ModConfig
+        """
+
+        return cls(
+            name=config_dict["name"],
+            nickname=config_dict.get("nickname"),
+            version=config_dict.get("version"),
+            variant=config_dict.get("variant"),
+            tags_prefix=config_dict.get("tags_prefix"),
+            tags_suffix=config_dict.get("tags_suffix"),
+            tag_retro=config_dict.get("tag_retro"),
+            original_track_prefix=config_dict.get("original_track_prefix"),
+            swap_original_order=config_dict.get("swap_original_order"),
+            keep_original_track=config_dict.get("keep_original_track"),
+            enable_random_cup=config_dict.get("enable_random_cup"),
+
+            default_track=Track.from_dict(config_dict.get("default_track", {})),
+            tracks=[Track.from_dict(track) for track in config_dict.get("tracks", [])],
+        )
+
+    @classmethod
+    def from_file(cls, config_file: str | Path) -> "ModConfig":
+        """
+        Create a ModConfig from a file
+        :param config_file: file containing the configuration
+        :return: ModConfig
+        """
+        if isinstance(config_file, str): config_file = Path(config_file)
+        return cls.from_dict(json.loads(config_file.read_text(encoding="utf8")))
+
+    def get_tracks(self) -> Generator["Track", None, None]:
+        """
+        Get all the track elements
+        :return: track elements
+        """
+        for track in self._tracks:
+            yield from track.get_tracks()
+
diff --git a/source/mkw/Track.py b/source/mkw/Track.py
index e69de29..6241900 100644
--- a/source/mkw/Track.py
+++ b/source/mkw/Track.py
@@ -0,0 +1,162 @@
+from typing import Generator
+import re
+
+from source.mkw import Tag, Slot
+
+TOKEN_START = "{{"
+TOKEN_END = "}}"
+
+common_token_map = {  # these operators and function are considered safe to use in the template
+   operator: operator
+   for operator in
+   ["+", "-", "*", "/", "%", "**", ",", "(", ")", "[", "]", "==", "!=", "in", ">", "<", ">=", "<=", "and", "or", "&",
+    "|", "^", "~", "<<", ">>", "not", "is", "if", "else", "abs", "int", "bin", "hex", "oct", "chr", "ord", "len",
+    "str", "bool", "float", "round", "min", "max", "sum", "zip", "any", "all", "issubclass", "reversed", "enumerate",
+    "list", "sorted", "hasattr", "for", "range", "type", "isinstance", "repr", "None", "True", "False"
+    ]
+
+} | {  # these methods are considered safe, except for the magic methods
+   f".{method}": f".{method}"
+   for method in dir(str) + dir(list) + dir(int) + dir(float)
+   if not method.startswith("__")
+}
+
+
+class TokenParsingError(Exception):
+    def __init__(self, token: str):
+        super().__init__(f"Invalid token while parsing track representation:\n{token}")
+
+
+# representation of a custom track
+class Track:
+    def __init__(self, special: Slot = None, music: Slot = None, tags: list[Tag] = None, weight: int = None, **kwargs):
+        self.special: Slot = special if special is not None else "T11"
+        self.music: Slot = music if music is not None else "T11"
+        self.tags: list[Tag] = tags if tags is not None else []
+        self.weight: int = weight if weight is not None else 1
+
+        # others not mandatory attributes
+        for key, value in kwargs.items():
+            setattr(self, key, value)
+
+    @classmethod
+    def from_dict(cls, track_dict: dict) -> "Track | TrackGroup":
+        """
+        create a track from a dict, or create a track group is it is a group
+        :param track_dict: dict containing the track information
+        :return: Track
+        """
+        if "group" in track_dict:
+            from source.mkw.TrackGroup import TrackGroup
+            return TrackGroup.from_dict(track_dict)
+        return cls(**track_dict)
+
+    def get_tracks(self) -> Generator["Track", None, None]:
+        """
+        Get all the track elements
+        :return: track elements
+        """
+        for _ in range(self.weight):
+            yield self
+
+    def repr_format(self, mod_config: "ModConfig", format: str) -> str:
+        """
+        return the representation of the track from the format
+        :param mod_config: configuration of the mod
+        :return: formatted representation of the track
+        """
+
+        token_map = common_token_map | {  # replace the suffix and the prefix by the corresponding values
+            "prefix": self.get_prefix(mod_config, ""),
+            "suffix": self.get_prefix(mod_config, ""),
+        } | {  # replace the track attribute by the corresponding values
+                        f"track.{attr}": f"track.{attr}" for attr, value in self.__dict__.items()
+                    } | {  # replace the track variable by the corresponding value, if not used with an attribute
+                        "track": "track"
+                    }
+
+        def format_token(match: re.Match) -> str:
+            # get the token string without the brackets, then strip it
+            process_token = match.group(1).strip()
+            final_token: str = ""
+
+            def matched(match: re.Match | str | None, value: str = None) -> bool:
+                """
+                check if token is matched, if yes, add it to the final token and remove it from the processing token
+                :param match: match object
+                :param value: if the match is a string, the value to replace the text with
+                :return: True if matched, False otherwise
+                """
+                nonlocal final_token, process_token
+
+                # if there is no match or the string is empty, return False
+                if not match: return False
+
+                if isinstance(match, re.Match):
+                    process_token_raw = process_token[match.end():]
+                    value = match.group()
+
+                else:
+                    if not process_token.startswith(match): return False
+                    process_token_raw = process_token[len(match):]
+
+                process_token = process_token_raw.lstrip()
+
+                final_token += value + (len(process_token_raw) - len(process_token)) * " "
+
+                return True
+
+            while process_token:  # while there is still tokens to process
+                # if the section is a string, add it to the final token
+                # example : "hello", "hello \" world"
+                if matched(re.match(r'^\"(?:[^"\\]|\\.)*\"', process_token)):
+                    continue
+
+                # if the section is a float or an int, add it to the final token
+                # example : 102, 102.59
+                if matched(re.match(r'^[0-9]+(?:\.[0-9]+)?', process_token)):
+                    continue
+
+                # if the section is a variable, operator or function, replace it by its value
+                # example : track.special, +
+                for key, value in token_map.items():
+                    if matched(key, value):
+                        break
+
+                # else, the token is invalid, so raise an error
+                else:
+                    raise TokenParsingError(process_token)
+
+            # if final_token is set, eval final_token and return the result
+            if final_token:
+                return str(eval(final_token, {}, {"track": self}))
+            else:
+                return final_token
+
+        # pass everything between TOKEN_START and TOKEN_END in the function
+        return re.sub(rf"{TOKEN_START}(.*?){TOKEN_END}", format_token, format)
+
+    def get_prefix(self, mod_config: "ModConfig", default: any = None) -> any:
+        """
+        return the prefix of the track
+        :param default: default value if no prefix is found
+        :param mod_config: mod configuration
+        :return: formatted representation of the track prefix
+        """
+        for tag in filter(lambda tag: tag in mod_config.tags_prefix, self.tags):
+            return mod_config.tags_prefix[tag]
+        return default
+
+    def get_suffix(self, mod_config: "ModConfig", default: any = None) -> any:
+        """
+        return the suffix of the track
+        :param default: default value if no suffix is found
+        :param mod_config: mod configuration
+        :return: formatted representation of the track suffix
+        """
+        for tag in filter(lambda tag: tag in mod_config.tags_suffix, self.tags):
+            return mod_config.tags_suffix[tag]
+        return default
+
+    def get_highlight(self, mod_config: "ModConfig", default: any = None) -> any:
+        ...
diff --git a/source/mkw/TrackGroup.py b/source/mkw/TrackGroup.py
index e69de29..ce4cc86 100644
--- a/source/mkw/TrackGroup.py
+++ b/source/mkw/TrackGroup.py
@@ -0,0 +1,27 @@
+from typing import Generator
+
+
+# representation of a group of tracks
+class TrackGroup:
+    def __init__(self, tracks: list["Track"] = None):
+        self.tracks = tracks if tracks is not None else []
+
+    def get_tracks(self) -> Generator["Track", None, None]:
+        """
+        Get all the track elements
+        :return: track elements
+        """
+        for track in self.tracks:
+            yield from track.get_tracks()
+
+    @classmethod
+    def from_dict(cls, group_dict: dict) -> "TrackGroup | Track":
+        """
+        create a track group from a dict, or create a track from the dict if not a group
+        :param group_dict: dict containing the track information
+        :return: TrackGroup or Track
+        """
+        from source.mkw.Track import Track
+
+        if "group" not in group_dict: return Track.from_dict(group_dict)
+        return cls(tracks=[Track.from_dict(track) for track in group_dict["group"]])
diff --git a/source/mkw/__init__.py b/source/mkw/__init__.py
index e69de29..1298592 100644
--- a/source/mkw/__init__.py
+++ b/source/mkw/__init__.py
@@ -0,0 +1,28 @@
+import enum
+
+Tag = str
+Slot = str
+
+
+Color = {
+    "yor7":   0xF5090B,  # apple red
+    "yor6":   0xE82C09,  # dark red
+    "yor5":   0xE65118,  # dark orange (flame)
+    "yor4":   0xFF760E,  # orange (pumpkin)
+    "yor3":   0xFFA61F,  # light orange (bright yellow)
+    "yor2":   0xFEBC1F,  # yellow (ripe mango)
+    "yor1":   0xFFE71F,  # light yellow
+    "yor0":   0xFFFF22,  # neon yellow
+    "blue2":  0x1170EC,  # dark blue
+    "blue1":  0x75B5F6,  # azure
+    "green":  0x0EB00A,  # green
+    "yellow": 0xFFFD1E,  # neon yellow 2
+    "red4":   0xEE0C10,  # vivid red
+    "red3":   0xFF0308,  # red
+    "red2":   0xF14A4E,  # light red
+    "red1":   0xE46C74,  # pink
+    "white":  0xFFFFFF,  # white
+    "clear":  0x000000,  # clear
+    "off":    0x998C86   # off
+}
+
diff --git a/source/wt/szs.py b/source/wt/szs.py
index d432940..e415c05 100644
--- a/source/wt/szs.py
+++ b/source/wt/szs.py
@@ -4,10 +4,14 @@ tools_path = tools_szs_dir / "wszst.exe"
 
 
 class SZSPath:
+    __slots__ = ("path",)
 
     def __init__(self, path: Path | str):
         self.path: Path = path if isinstance(path, Path) else Path(path)
 
+    def __repr__(self):
+        return f"<SZSPath: {self.path}>"
+
     @better_error(tools_path)
     def _run(self, *args) -> bytes:
         """
@@ -37,8 +41,94 @@ class SZSPath:
         :param dest: destination path
         :return: the extracted file path
         """
-        dest = dest if isinstance(dest, Path) else Path(dest)
+        return self[subfile].extract(dest)
+
+    def extract_all(self, dest: Path | str) -> Path:
+        """
+        Extract all the subfiles to a destination
+        :param dest: output directory
+        :return:
+        """
+        dest: Path = dest if isinstance(dest, Path) else Path(dest)
+        if dest.is_dir(): dest /= self.path.name
+
+        self._run("EXTRACT", self.path, "-d", dest)
+        return dest
+
+    def analyze(self) -> dict:
+        """
+        Return the analyze of the szs
+        :return: dictionnary of key and value of the analyze
+        """
+        analyze = {}
+        for line in filter(lambda f: f.strip(), self._run("ANALYZE", self.path).decode().splitlines()):
+            key, value = line.split("=", 1)
+            analyze[key.strip()] = value.strip()
+
+        return analyze
+
+    def list_raw(self) -> list[str]:
+        """
+        Return the list of subfiles
+        :return: the list of subfiles
+        """
+
+        # cycle though all of the output line of the command, check if the line are empty, and if not,
+        # add it to the list. Finally, remove the first line because this is a description of the command
+        return [subfile.strip() for subfile in self._run("list", self.path).decode().splitlines() if subfile][1:]
+
+    def list(self) -> list["SZSSubPath"]:
+        """
+        Return the list of subfiles
+        :return: the list of subfiles
+        """
+        return [self.get_subfile(subfile) for subfile in self.list_raw()]
+
+    def get_subfile(self, subfile: str) -> "SZSSubPath":
+        """
+        Return the subfile of the szs
+        :return: the subfile
+        """
+        return SZSSubPath(self, subfile)
+
+    def __getitem__(self, item):
+        return self.get_subfile(item)
+
+    def __iter__(self):
+        return iter(self.list())
+
+
+class SZSSubPath:
+    __slots__ = ("szs_path", "subfile")
+
+    def __init__(self, szs_path: SZSPath, subfile: str):
+        self.szs_path = szs_path
+        self.subfile = subfile
+
+    def __repr__(self):
+        return f"<SZSSubPath: {self.szs_path.path}/{self.subfile}>"
+
+    def extract(self, dest: Path | str) -> Path:
+        """
+        Extract the subfile to a destination
+        :param dest: destination path
+        :return: the extracted file path
+        """
+        if self.is_dir(): raise ValueError("Can't extract a directory")
+
+        dest: Path = dest if isinstance(dest, Path) else Path(dest)
+        if dest.is_dir(): dest /= self.basename()
+
         with dest.open("wb") as file:
-            file.write(self.cat(subfile))
+            file.write(self.szs_path.cat(self.subfile))
 
         return dest
+
+    def is_dir(self):
+        return self.subfile.endswith("/")
+
+    def is_file(self):
+        return not self.is_dir()
+
+    def basename(self):
+        return self.subfile.rsplit("/", 1)[-1]