rem: BView(BRect(0, 0, 0, 0), "menu frame", B_FOLLOW_ALL_SIDES, B_WILL_DRAW)
add: BView(BRect(0, 0, 1, 1), "menu frame", B_FOLLOW_ALL_SIDES, B_WILL_DRAW)
context: 	BMenuFrame() :		BView(BRect(0, 0, 0, 0), "menu frame", B_FOLLOW_ALL_SIDES, B_WILL_DRAW)	{	};