diff --git a/NewHorizons/Schemas/addon_manifest_schema.json b/NewHorizons/Schemas/addon_manifest_schema.json
index aada816a..dec9022f 100644
--- a/NewHorizons/Schemas/addon_manifest_schema.json
+++ b/NewHorizons/Schemas/addon_manifest_schema.json
@@ -27,6 +27,17 @@
       "type": "boolean",
       "description": "If popupMessage is set, should it repeat every time the game starts or only once"
     },
+    "preloadAssetBundles": {
+      "type": "array",
+      "description": "These asset bundles will be loaded on the title screen and stay loaded. Will improve initial load time at the cost of increased memory use.\nThe path is the relative directory of the asset bundle in the mod folder.",
+      "items": {
+        "type": "string"
+      }
+    },
+    "subtitlePath": {
+      "type": "string",
+      "description": "The path to the addons subtitle for the main menu.\nDefaults to \"subtitle.png\"."
+    },
     "$schema": {
       "type": "string",
       "description": "The schema to validate with"