Note
This theme is nowhere near complete. To track its progress, check the "Theme Progress" issue. When most assets are completed, a proper theme will be provided in releases.
10ThemeFor11 is an .msstyles theme for Windows 11 that aims to provide accurate Windows 10 controls, to the greatest extent that Windows 11 allows.
First, you need to install a UxTheme patcher to allow custom .msstyles themes since Microsoft locks them out by default. Some options include the Windhawk mod UXTheme hook and SecureUxTheme.
This theme has only been tested using the UXTheme hook Windhawk mod.
Currently, no theme file for easy install is provided. You can download the latest 10ThemeFor11.msstyles file from the repository and manually place it in the themes folder for now.
I recommend using the Disable Rounded Corners on Windows 11 Windhawk mod. As most Windows 10 controls have sharp corners, having rounded windows can look strange.
While the stock Windows 10 .msstyles theme works on Windows 11, it is only partially compatible. For example, the context menus and animations are broken. 10ThemeFor11 uses the assets from the stock Windows 10 .msstyles but reformats them in the way Windows 11 expects.