Added reference to "XMonad.Util.Loggers"

XMonad/Hooks/StatusBar.hs

@@ -339,6 +339,9 @@ statusBarPipe cmd xpp  = do
 -- property, their content will be the same. If you want to use property-based
 -- logging with multiple bars, they should read from different properties.
 --
+-- "XMonad.Util.Loggers" includes loggers that can be bound to specific screens,
+-- like 'logCurrentOnScreen', that might be useful with multiple screens.
+--
 -- Long-time xmonad users will note that the above config is equivalent to
 -- the following less robust and more verbose configuration that they might
 -- find in their old configs:

XMonad/Hooks/StatusBar/PP.hs

@@ -100,7 +100,9 @@ data PP = PP { ppCurrent :: WorkspaceId -> String
              , ppWsSep :: String
                -- ^ separator to use between workspace tags
              , ppTitle :: String -> String
-               -- ^ window title format for the focused window
+               -- ^ window title format for the focused window. To display
+               -- the titles of all windows—even unfocused ones—check
+               -- 'XMonad.Util.Loggers.logTitles'.
              , ppTitleSanitize :: String -> String
               -- ^ escape / sanitizes input to 'ppTitle'
              , ppLayout :: String -> String