https://learn.microsoft.com/ko-kr/dotnet/api/system.windows.controls.activatingkeytipeventargs.keytipverticaloffset?view=netframework-4.8.1
ActivatingKeyTipEventArgs.KeyTipVerticalOffset Property (System.Windows.Controls) | Microsoft Learn
Gets or sets the vertical offset from the specified vertical placement.
property systemwindowscontrolsmicrosoftlearn