https://learn.microsoft.com/en-us/dotnet/api/system.windows.controls.itemscontrol.itemcontainerstyle?view=windowsdesktop-10.0&redirectedfrom=MSDN
ItemsControl.ItemContainerStyle Property (System.Windows.Controls) | Microsoft Learn
Gets or sets the Style that is applied to the container element generated for each item.
property systemwindowscontrolsmicrosoftlearn