I love your tutoriaaaals! Thank you! This is very nice and very nice for me. It makes my days better. Also wanted to tell you that the colors you've chosen are quite nice too.
That's just me autofilling different options and not being consistent. They are effectively the same thing. Name is a property that some WPF controls have built into them, where x:Name is a XAML property that any xaml element contains. So occasionally you will need to use x:Name if a control does not have Name, but either way you get [basically] the same result.