Windows Registry Editor Version 5.00
[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Themes\Personalize]
„EnableTransparency“=dword:00000001
„EnableBlurBehind“=dword:00000001
https://msfn.org/board/topic/181325-aero-glass-for-win10-version-2004-build-19041/