creating a simple round button in MS VS Blend 2013

Open Microsoft Visual Studio Blend 2013 and create a Windows Phone Blank Silverlight App.

In the MainPage.xaml design select the button as shown in figure:

Now draw the button as shown in figure:

Select button and right click the mouse and from the list select edit template and select edit a copy as shown in figure:

After selecting this option you see the following screen:

After pressing ok you see the following screen:

On the left side of the screen you see the Appearance and in the cornerRadius write 50 instead of 0.

Now you see the round corner button as shown in figure:

On the right side of the screen click on the option where the mouse arrow is shown in figure:

After applying this you see that the original button is changed also as shown:

From the right side of the screen we can also change the Background, Foreground and BorderBrush color too as shown in figure:

You can also create all this effects by using XAML.