Index: uspace/app/gfxdemo/gfxdemo.c
===================================================================
--- uspace/app/gfxdemo/gfxdemo.c	(revision 9adae25d90fa489920cc8bbfbb3d7fa7b4bf3b75)
+++ uspace/app/gfxdemo/gfxdemo.c	(revision f1ce7ffb96f25129b80c6daa8fb6c10bef656490)
@@ -1152,4 +1152,8 @@
 	params.caption = "GFX Demo";
 
+	/* Do not decorate the window in fullscreen mode */
+	if (ui_is_fullscreen(ui))
+		params.style &= ~ui_wds_decorated;
+
 	/*
 	 * Compute window rectangle such that application area corresponds