Aero Lite

Aero Lite is a hidden visual style that debuted in Windows 8 and is used within future versions of Windows. It is used for the High Contrast themes with color customization, and acts as a replacement for the legacy Windows Classic visual style.

The theme file is present by default in Windows 8 builds up to build 8423. By Windows 8 build 8432 (fbl loc), the theme file is no longer present by default, although the final release of Windows Server 2012/Server 2012 R2 and Server 2016 builds up to 10575 still use this visual style by default. In both cases, the display name of the theme file is "Windows Basic" while it uses Desktop Window Manager, unlike the actual Windows Basic introduced in Windows Vista.

The msstyles file but not the theme file is present in the  folder from Windows 8 onwards. To enable the theme, create a copy of the  file called   and redirect it to the   file and set its display name to Aero Lite. Alternatively, you can copy the  file from Windows Server 2012/2012 R2 installation to   folder.