.

module/applications/ux/contextMenu.mjs

@@ -86,7 +86,7 @@ export default class DHContextMenu extends foundry.applications.ux.ContextMenu {
         const element = event.target.closest('.context-item');
         if (!element) return;
         const item = this.menuItems.find(i => i.element === element);
-        item?.callback(this.#jQuery ? $(this.target) : this.target, event);
+        item?.onClick(event, this.#jQuery ? $(this.target) : this.target);
         this.close();
     }
 

module/config/generalConfig.mjs

@@ -870,6 +870,11 @@ export const activeEffectModes = {
         priority: 20,
         label: 'EFFECT.CHANGES.TYPES.add'
     },
+    subtract: {
+        id: 'subtract',
+        priority: 20,
+        label: 'EFFECT.CHANGES.TYPES.subtract'
+    },
     downgrade: {
         id: 'downgrade',
         priority: 30,