Difference Between ItemPanel and ItemTemplate

 ItemsSource="{Binding}">
  
    
       Background="SteelBlue" Padding="5" BorderBrush="Black"
        BorderThickness="1" Margin="0,2">
         Text="{Binding}"/>
      
    

Background="DarkKhaki"/>

And the result:

The ItemTemplate determines the layout of each item in the list. On the other hand the ItemsPanel is the panel that will contain the individual items. Given the above definition the visual tree will be something similar to this:

https://stackoverflow.com/questions/1409514/what-is-the-difference-between-itemtemplate-and-itempaneltemplate