diff --git a/QuickLook/App.xaml.cs b/QuickLook/App.xaml.cs
index bc6bbc9..0c1a880 100644
--- a/QuickLook/App.xaml.cs
+++ b/QuickLook/App.xaml.cs
@@ -341,6 +341,7 @@ public partial class App : Application
 
     private void CheckAndRegisterPluginIcon()
     {
+        // TODO: only /register-plugin-icon command to register plugin icon immediately, and can be removed
         _ = Task.Delay(3000).ContinueWith(_ => PluginIconRegistrationHelper.CheckAndRegisterPluginIcon());
     }