UltraUXThemePatcher by Manuel Hoefs - modifies your system files so that 3. (Refer to the FAQ on their respective pages for any issues you may run into.) (You can check which version of Windows you are running by pressing Windows+R and typing 'winver' in the run dialog.) PATCH YOUR SYSTEM TO USE THIRD PARTY THEMES! 🚧
Warning: If you are new to this or unsure it's always best to create a System Restore Point before continuing. Including Themes, Wallpapers, Icons and more! A collection of Windows 10-11 (21H2) Themes to customize your desktop experience.