Tells the WM how to implement the visual indication that the system bell or another application 'bell' indicator has been rung. Currently there are two valid values, "fullscreen-flash", which causes a fullscreen white-black flash, and "frame-flash" which causes the titlebar of the application which sent the bell signal to flash. If the application which sent the bell is unknown (as is usually the case for the default "system beep"), the currently focused window's titlebar is flashed.
Sistemaren soinua edo beste aplikazio baten 'soinua' jotzean, bisualki nola adierazi behar duen esaten dio WM-ri. Oraingoz bi balio daude aukeran, "fullscreen-flash", pantaila osoko zuri-beltzeko flash-a egiten duena; eta "frame-flash", soinua jotzeko agindua eman duen aplikazioaren titulu-barra keinuka erakusten duena. Soinua zein aplikaziok jo duen jakiterik ez badago (hori gertatzen da normalean "sistema-soinu" lehenetsia denean), unean fokua duen leihoaren titulu-barra agertzen da keinuka.