Add Game Mode toggle and fix MPO overlay for 25H2 (#4495)

config/tweaks.json

@@ -1474,6 +1474,14 @@
         "Type": "DWord",
         "OriginalValue": "5",
         "DefaultState": "true"
+      },
+      {
+        "Path": "HKLM:\\SYSTEM\\CurrentControlSet\\Control\\GraphicsDrivers",
+        "Name": "DisableOverlays",
+        "Value": "1",
+        "Type": "DWord",
+        "OriginalValue": "0",
+        "DefaultState": "false"
       }
     ],
     "link": "https://winutil.christitus.com/dev/tweaks/customize-preferences/multiplaneoverlay"
@@ -1754,6 +1762,32 @@
     ],
     "link": "https://winutil.christitus.com/dev/tweaks/customize-preferences/taskview"
   },
+  "WPFToggleGameMode": {
+    "Content": "Game Mode",
+    "Description": "If enabled, Windows prioritizes gaming performance by allocating system resources. Disable for audio/video production to prevent interference.",
+    "category": "Customize Preferences",
+    "panel": "2",
+    "Type": "Toggle",
+    "registry": [
+      {
+        "Path": "HKCU:\\Software\\Microsoft\\GameBar",
+        "Name": "AllowAutoGameMode",
+        "Value": "1",
+        "Type": "DWord",
+        "OriginalValue": "0",
+        "DefaultState": "true"
+      },
+      {
+        "Path": "HKCU:\\Software\\Microsoft\\GameBar",
+        "Name": "AutoGameModeEnabled",
+        "Value": "1",
+        "Type": "DWord",
+        "OriginalValue": "0",
+        "DefaultState": "true"
+      }
+    ],
+    "link": "https://winutil.christitus.com/dev/tweaks/customize-preferences/gamemode"
+  },
   "WPFOOSUbutton": {
     "Content": "O&O ShutUp10++ - Run",
     "category": "z__Advanced Tweaks - CAUTION",