KWin is a free and open source window manager and is the default in KDE. It is a powerful, highly customizable window manager with a plethora of both aesthetic and nuts and bolts features. With the release of KDE 4, the developers added 3D desktop effects, but they also carried over many customization features from KDE 3. Here are some of the window-specific settings that you can use in KWin.
There are two ways to access Window Specific Settings. One is to right click on the title bar of the window you want to configure, click “Advanced“, and click “Special Window Settings“. The other is to start System Settings, click the “Window Behavior” button, and then click “Window-Specific“. From there just click “New…” to make a new rule. In the second method you will have to manually specify the name of the window or click “Detect Window Properties” and click on the window you want to configure.