windows 10 phone homescreen contacts tile photos changed from squares to circles

Hi I was buying a case for the lumia 950 & the phone in the photo had contacts photos as squares in the contacts tile. Is there an option in the phone to choose either circles or squares ,if not can you please provide an update which allows this . With squares, 4 smaller squares lined up together to form a larger square picture without any space gaps in between the photos . This can't be done with the circles. thanks
John

from Windows Central Forums https://ift.tt/2IJwUPX
via IFTTT