New Post: change DateTimeUpDown background OnMouseOver and IsPressed

<Window x:Class="WpfApplication23.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:themes="clr-namespace:Xceed.Wpf.Toolkit.Themes;assembly=Xceed.Wpf.Toolkit"
        xmlns:xctk="http://schemas.xceed.com/wpf/xaml/toolkit"
        Title="MainWindow" Height="350" Width="525">
   <Window.Resources>
      <Style x:Key="{ComponentResourceKey TypeInTargetAssembly={x:Type themes:ResourceKeys}, ResourceId=SpinnerButtonStyleKey}"
             TargetType="RepeatButton">
         <Setter Property="Background"
                 Value="Red" />
      </Style>
   </Window.Resources>
    
   <Grid>
         <xctk:TimePicker x:Name="_timePicker"
                             Height="22"
                             Width="150"/>
   </Grid>
</Window>