WMNAME
WMNAME refers to the WM_NAME property used in the X Window System to communicate a window’s human-readable title to the window manager. Defined by the ICCCM (Inter-Client Communication Conventions Manual), WM_NAME is a standard property that allows clients to label their windows so that window managers can display meaningful titles in title bars, task lists, and alt-tab style interfaces.
Historically, WM_NAME is a STRING property; it is typically set by the application at window creation and
In modern desktop environments, window managers and compositors follow the Extended Window Manager Hints (EWMH) specification,
If neither WM_NAME nor _NET_WM_NAME is available, a window manager may derive a title from other properties
See also: WM_ICON_NAME, WM_HINTS, WM_CLASS, _NET_WM_NAME, X11.