I'd like to replace the default security icons (the lock and the eye) with an image of my own choice. I found the part of the CSS that it's contained in but I cannot figure out how to put it together to override what's already present.
This is the part where the icon is contained:
I don't mind if it's not possible to differentiate in the CSS between the lock and the eye as I had planned to use the same image for both anyway. Any guidance would be very appreciated.