I am able to create a north arrow in a layout using the example in the Esri snippet (North Arrow Snippet). The primary line in that snippet is as follows:
var northArrow = LayoutElementFactory.Instance.CreateNorthArrow(layout, llNorthArrow, mf);<SPAN class="line-numbers-rows"><SPAN></SPAN></SPAN>
But if I want to change the style of the north arrow, how would I do that? The north arrow styles are types of fonts:

Thanks.