*** Welcome to piglix ***

KWin

KWin
Kwin-cube.jpg
KWin 4.4 with Cube effect.
Developer(s) KDE (Martin Gräßlin, et al.)
Stable release 5.9.2 (14 February 2017; 4 days ago (2017-02-14))
Preview release 5.8 Beta (15 September 2016; 5 months ago (2016-09-15))
Written in C++ (Qt)
Operating system Linux, BSD, other Unix-like
Type
License GNU General Public License
Website projects.kde.org/projects/frameworks/kwindowsystem/repository

KWin is a window manager for the X Window System and is currently in the process of becoming a . It is released as part of KDE Plasma 5 for which it is the default window manager. KWin can also be used on its own or with other desktop environments.

KWin 5.x depends on KDE Frameworks 5. KWin 4.x depended on KDE Platform 4, which was a monolithic library. KWin 3.x and earlier depended on KDELibs.

KWin can be configured by scripting using QML or QtScript, both of which are based on ECMAScript.

There are many window decorations for KWin, including the current default Breeze (shown below), the previous default Oxygen, Microsoft Windows-like Redmond, and Keramik.

Currently available compositing backends include XRender, OpenGL 1.2, OpenGL 2.0, OpenGL 3.1 and OpenGL ES 2.0.

As of KDE 4.3 the following effects are built-in:


...
Wikipedia

...