Win11 features a new aero.msstyles which includes the new rounded-corner buttons and blue rounded corner checkboxes, text fields, as well as other small details. These details show up even on WinPE during install. So can this new Visual style (as well as the other ones on Win11's Windows\Resources\Themes folder) be applied into Windows 10 or even earlier such as Windows 8?
I quite doubt it, since it seems to be heavily dependant of DWM. Rounded corners are also very dependant of the display drivers. Bad-Outdated drivers = no rounded corners. Maybe someone could try to appy it on latest pre-win11 cobalt branch release (21390.xxxx)
Theme File from Win 11. remove the .txt. Open with NotePad. Theme File is a TXT File Tells you cursors, Wallpaper, Color, Sound What you are asking for is not found in the .theme File (Rounded Corners etc.)
Tried out of curiosity the whole aero theme (on 1803 I had handy) The theme itself is not refused, but the only visible effect is a bit odd shadow effect and crippled close/iconify/minimize buttons.
The .theme File tells every thing I said it does. Do you know how to work with .deskthemepack files ?
My reply wasn't intended as a reply to yours (I was still writing while you posted), just a quick test given I had two wm already opened. If it worked, was nice, it didn't as I guessed, and I couldn't care less. I really care of things that simplify my life, like ClassicShell, not themes.
Yes in fact, if you replace aero.msstyles and the resources in the folder with those from Windows 11 (best to do it outside of Windows) you get most of the theme elements - everything but the updated shadows, animations and rounded windows (DWM dependent I believe)