Thank you for the information. Interestingly, I used https://bugs.launchpad.net/ubuntu/+source/gnome-control-center/+bug/876897 and my application did not appear. There was no option to add it either, so I settled for another. The reason I wanted to change it in the first place is that Shotwell takes forever to load to view pictures. I have settled for Image Viewer.
Thank you for the information. Interestingly, I used https:/ /bugs.launchpad .net/ubuntu/ +source/ gnome-control- center/ +bug/876897 and my application did not appear. There was no option to add it either, so I settled for another. The reason I wanted to change it in the first place is that Shotwell takes forever to load to view pictures. I have settled for Image Viewer.