Adding window swallowing to Xmonad.

.config/xmonad/xmonad.hs

@@ -33,6 +33,7 @@ import XMonad.Hooks.ServerMode
 import XMonad.Hooks.SetWMName
 import XMonad.Hooks.StatusBar
 import XMonad.Hooks.StatusBar.PP
+import XMonad.Hooks.WindowSwallowing
 import XMonad.Hooks.WorkspaceHistory
 
     -- Layouts
@@ -685,12 +686,7 @@ main = do
   -- the xmonad, ya know...what the WM is named after!
   xmonad $ addDescrKeys' ((mod4Mask, xK_F1), showKeybindings) myKeys $ ewmh $ docks $ def
     { manageHook         = myManageHook <+> manageDocks
-    --, handleEventHook    = docks
-                           -- Uncomment this line to enable fullscreen support on things like YouTube/Netflix.
-                           -- This works perfect on SINGLE monitor systems. On multi-monitor systems,
-                           -- it adds a border around the window if screen does not have focus. So, my solution
-                           -- is to use a keybinding to toggle fullscreen noborders instead.  (M-<Space>)
-                           -- <+> fullscreenEventHook
+    , handleEventHook    = swallowEventHook (className =? "Alacritty"  <||> className =? "st-256color" <||> className =? "XTerm") (return True)
     , modMask            = myModMask
     , terminal           = myTerminal
     , startupHook        = myStartupHook