Creating button:

<Button></Button>

Button with alignment:

<Button Content="Button" Width="200" Height="25" HorizontalAlignment="Left" VerticalAlignment="Top" ></Button>

Changing back ground color of button:

<Button Content="Button" Width="200" Height="25" HorizontalAlignment="Left" VerticalAlignment="Top" Background="red" ></Button>

Adding image as background to button:

<Button Name="btnTest1" Width="200" Height="25" HorizontalAlignment="Left" VerticalAlignment="Top" Background="red" >
<Image x:Name="imgSls1" Source="thumbnailCAKKSCJQ.jpg" Width="30" Height="30" HorizontalAlignment="Left" />
 </Button>

Adding image and Text as background to button:

<Button Name="btnTest" Background="White" Width="200" Height="25" HorizontalAlignment="Left" VerticalAlignment="Top" >
<StackPanel>
 <Image Name="imgSls" Source="thumbnail.jpg" Width="30" Height="30" HorizontalAlignment="Left" />
 <TextBlock Name="tblPlay" Text="PLAY" FontWeight="Bold"/>
 </StackPanel>

</Button>