update page info layout in menu

this should fix #281

frontend/ui/widget/menu.lua

@@ -32,6 +32,7 @@ function ItemShortCutIcon:init()
 	end
 
 	--@TODO calculate font size by icon size  01.05 2012 (houqp)
+	local sc_face = nil
 	if self.key:len() > 1 then
 		sc_face = Font:getFace("ffont", 14)
 	else
@@ -49,6 +50,7 @@ function ItemShortCutIcon:init()
 			TextWidget:new{
 				text = self.key,
 				face = sc_face,
+				bgcolor = background/15,
 			},
 		},
 	}
@@ -262,6 +264,10 @@ function Menu:_recalculateDimen()
 	}
 	self.perpage = math.floor((self.dimen.h - self.dimen.x) / self.item_dimen.h) - 2
 	self.page_num = math.ceil(#self.item_table / self.perpage)
+	-- update page info layout, fixed #281
+	if self.page_info then
+		self.page_info:resetLayout()
+	end
 end
 
 function Menu:init()