Button

Allows the user to run a separate subroutine.

<Button Name="btnCancel" 
        Grid.Column=" 
        Grid.Row="" 
        Grid.ColumnSpan="" 
        Grid.RowSpan="" 
        Content="Cancel" 
        Click="btnCancel_Click" 
        HorizontalAlignment="Stretch" 
        VerticalAlignment="Stretch" 
        IsDefault="True" 
        IsCancel="False" 
        FontFamily="Microsoft Sans Serif" 
        FontSize="12"> 
</Button/> 

Sizes

Standard - Height 20, Width ?
Small
Medium
Large - Height 280, Width 322

Closing

System.Windows.Window.GetWindow(this).Close(); 

Escape to Close

Button IsCancel="True" 

Margins

Left, Top, Right, Bottom

Images

Set Build Action to "Resource" not "Embedded Resource"

<Button Name="btnCancel" 
   <Image Source="Resources/Image.png" 
          VerticalAlignment="Center"/> 
</Button> 

Arrows

Webdings 12 pt
Up - 5
Down - 6
Left - 3
Right - 4

size - (H30, W 80)