https://learn.microsoft.com/en-us/dotnet/api/system.timers.timersdescriptionattribute.description?view=netframework-4.8.1&viewFallbackFrom=net-10.0
TimersDescriptionAttribute.Description Property (System.Timers) | Microsoft Learn
Gets the description that visual designers can display when referencing an event, extender, or property.
property systemdescriptiontimersmicrosoftlearn