Thank you, Dominic. When I open the element.zip file I see an element folder with another element folder that contains the php file. I'm very new to T4 framework so bare with me. I made the edits to the offcanvas-toggle.php and then copied the element folder to the layouts folder as you instructed. I wasn't sure whether you wanted the double element folder or not so I tried it both ways.
At this point nothing changed on the site. I'm still getting the three bar toggle icon so I'm obviously missing something. Please advise.