Yes, apparently Norton Security now adds some kind of icons over the image files that are marked for backup. Fortunately, getting rid of them isn't very difficult: simply go to the anti-virus's Settings, and on the right-side of the screen in the Quick Controls section, you should see a checkbox marked as Backup Settings Overlays: uncheck it, then reboot your PC and those pesky overlaying icons should be gone.
If your issue persists or if you have any additional problems with the application, the best thing to do is to contact the company's support service, as they are definitely the ones most qualified to help you out.
