Enable Dark Mode (Python)

#!/usr/bin/env python3
"""
set_dark_mode.py

Enable Dark Mode.
Switches File Explorer and other system surfaces to dark mode.

Usage:
    python set_dark_mode.py
"""

import winreg


def main() -> None:
    key = winreg.CreateKeyEx(
        winreg.HKEY_CURRENT_USER, r"Software\Microsoft\Windows\CurrentVersion\Themes\Personalize", 0, winreg.KEY_SET_VALUE
    )
    winreg.SetValueEx(key, "AppsUseLightTheme", 0, winreg.REG_DWORD, 0)
    winreg.CloseKey(key)
    print("Enable Dark Mode applied.")


if __name__ == "__main__":
    main()