Umstellung auf Customtkinter.

.venv/Lib/site-packages/customtkinter/windows/widgets/theme/__init__.py

@@ -0,0 +1,9 @@
+from .theme_manager import ThemeManager
+
+# load default blue theme
+try:
+    ThemeManager.load_theme("blue")
+except FileNotFoundError as err:
+    raise FileNotFoundError(f"{err}\nThe .json theme file for CustomTkinter could not be found.\n" +
+                            f"If packaging with pyinstaller was used, have a look at the wiki:\n" +
+                            f"https://github.com/TomSchimansky/CustomTkinter/wiki/Packaging#windows-pyinstaller-auto-py-to-exe")

.venv/Lib/site-packages/customtkinter/windows/widgets/theme/theme_manager.py

@@ -0,0 +1,55 @@
+import sys
+import os
+import pathlib
+import json
+from typing import List, Union
+
+
+class ThemeManager:
+
+    theme: dict = {}  # contains all the theme data
+    _built_in_themes: List[str] = ["blue", "green", "dark-blue", "sweetkind"]
+    _currently_loaded_theme: Union[str, None] = None
+
+    @classmethod
+    def load_theme(cls, theme_name_or_path: str):
+        script_directory = os.path.dirname(os.path.abspath(__file__))
+
+        if theme_name_or_path in cls._built_in_themes:
+            customtkinter_path = pathlib.Path(script_directory).parent.parent.parent
+            with open(os.path.join(customtkinter_path, "assets", "themes", f"{theme_name_or_path}.json"), "r") as f:
+                cls.theme = json.load(f)
+        else:
+            with open(theme_name_or_path, "r") as f:
+                cls.theme = json.load(f)
+
+        # store theme path for saving
+        cls._currently_loaded_theme = theme_name_or_path
+
+        # filter theme values for platform
+        for key in cls.theme.keys():
+            # check if values for key differ on platforms
+            if "macOS" in cls.theme[key].keys():
+                if sys.platform == "darwin":
+                    cls.theme[key] = cls.theme[key]["macOS"]
+                elif sys.platform.startswith("win"):
+                    cls.theme[key] = cls.theme[key]["Windows"]
+                else:
+                    cls.theme[key] = cls.theme[key]["Linux"]
+
+        # fix name inconsistencies
+        if "CTkCheckbox" in cls.theme.keys():
+            cls.theme["CTkCheckBox"] = cls.theme.pop("CTkCheckbox")
+        if "CTkRadiobutton" in cls.theme.keys():
+            cls.theme["CTkRadioButton"] = cls.theme.pop("CTkRadiobutton")
+
+    @classmethod
+    def save_theme(cls):
+        if cls._currently_loaded_theme is not None:
+            if cls._currently_loaded_theme not in cls._built_in_themes:
+                with open(cls._currently_loaded_theme, "r") as f:
+                    json.dump(cls.theme, f, indent=2)
+            else:
+                raise ValueError(f"cannot modify builtin theme '{cls._currently_loaded_theme}'")
+        else:
+            raise ValueError(f"cannot save theme, no theme is loaded")