Hi ! @leadfarmer
1 - Navigate in terminal to /home/pi/MagicMirror/modules/MMM-Remote-Control
2 - wget https://raw.githubusercontent.com/istepgueu/MMM-door-sensor/master/img/mm.png
3 - nano /home/pi/MagicMirror/modules/MMM-Remote-Control/remote.html
4 - Add on line 12
(sorry but forum can take my code. @administrators )
ps : Change N°2 wget by another image on web if you want and change N°4 with the same name.
Voilà :-)