diff --git a/packages/core/src/traits/darkened.js b/packages/core/src/traits/darkened.js
index f035ee9..49b4c11 100644
--- a/packages/core/src/traits/darkened.js
+++ b/packages/core/src/traits/darkened.js
@@ -8,19 +8,6 @@ export default () => class Darkened extends Trait {
     };
   }
 
-  static describeParams() {
-    return {
-      isDarkened: {
-        type: 'bool',
-        label: 'Is darkened',
-      },
-    };
-  }
-
-  static type() {
-    return 'darkened';
-  }
-
   async load(json) {
     await super.load(json);
     this._isDarkened = this.params.isDarkened;