🐍 Python 3.10+

Enable Light Mode (Python)

Reverts File Explorer and other system surfaces to light mode. Applies the tweak via the stdlib winreg module.

By WindowsScripting.com · 541 B
set_light_mode.py
#!/usr/bin/env python3
"""
set_light_mode.py

Enable Light Mode.
Reverts File Explorer and other system surfaces to light mode.

Usage:
    python set_light_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, 1)
    winreg.CloseKey(key)
    print("Enable Light Mode applied.")


if __name__ == "__main__":
    main()