I wanted to add two more shortcuts to the group of small icons. For these, I created my own icons because the default icon is a folder icon. In the first test, I noticed some issue with the icon's size or resolution, so I made a new icon. For some reason, however, the program always fetches the old faulty icon and doesn't update it with the new one. How do I fix this problem?

EDIT: I also noticed that in front of the icon there’s some kind of round mask that cuts off a small part of the icon’s corners. Is there any solution for this?