The list of window managers that the config module offers for using.The format is normal .desktop files:Name - required, name to display in the configuration dialog.Exec - required, the command to execute to launch the window manager.If launching fails for any reason, it must quit with non-zero exitvalue and not do anything else (show an error dialog, try to runa fallback, etc.).TryExec - optional.X-KDE-WindowManagerTestExec - optional, a command that will be run and ifthe exit code is not 0, the window manager won't be used (can be usede.g. to detect that a window manager which requires compositing supportcannot be run on systems without such support).X-KDE-WindowManagerId - optional, the name under which the window managerregisters with the session manager (if different from the nameof the .desktop file)X-KDE-WindowManagerConfigure - optional, the command to run to configurethe window managerX-KDE-WindowManagerRestartArgument - optional, the argument to passto the window manager to restart it directly in the running KDEsession; if not present, KDE restart is required (which is generallya good idea anyway, but this can be useful for e.g. checking)X-KDE-WindowManagerConfigureParentArgument - option, if present, thisargument and the X window id of the configuration dialog will be passedto the configuration command (e.g. '--parent 13254543'). The configurationtool may specify this window as the parent of its window.