xmonad: use picom to distinguish active window

profiles/graphical/xmonad/_xmonad.hs

@@ -41,7 +41,7 @@ main =
   , manageHook         = myManageHook
                          <+> manageHook defaultConfig
                          <+> manageDocks
-  , borderWidth        = 1
+  , borderWidth        = 0
   , logHook            = takeTopFocus
   }
   `additionalKeys` myKeys

profiles/graphical/xmonad/_xmonad.nix

@@ -1,4 +1,4 @@
-{ autostart, screenshots, touchtoggle, dzvol, stoggle }: ''
+{ autostart, screenshots, touchtoggle, dzvol, pkgs, stoggle }: ''
   -- Function for fullscreen toggle
   fullToggle :: X ()
   fullToggle = do
@@ -13,6 +13,7 @@
   myAutostart :: X ()
   myAutostart = do
     spawn "${autostart}"
+    spawn "feh --bg-fill --no-fehbg ${pkgs.adapta-backgrounds}/share/backgrounds/adapta/tri-fadeno.jpg"
     setWMName "LG3D"
     sendMessage $ SetStruts [] [minBound .. maxBound]
     setDefaultCursor xC_left_ptr

profiles/graphical/xmonad/default.nix

@@ -14,5 +14,14 @@
     config = import ./xmonad.hs.nix { inherit pkgs; };
   };
 
+  services.picom = {
+    enable = true;
+    inactiveOpacity = "0.8";
+    settings = {
+      "unredir-if-possible" = true;
+      "focus-exclude" = "id = 0x2400001";
+    };
+  };
+
   programs.slock.enable = true;
 }

profiles/graphical/xmonad/xmonad.hs.nix

@@ -14,6 +14,6 @@ let
 in ''
   ${readFile ./_xmonad.hs}
   ${import ./_xmonad.nix {
-    inherit screenshots touchtoggle autostart dzvol stoggle;
+    inherit screenshots touchtoggle autostart dzvol stoggle pkgs;
   }}
 ''