Any number of them. You cross your fingers and hope it works. it doesn’t stay the same every time you hit the apply button I tried to change the desktop icons upon hitting the apply icon button. Some of the desktop buttons changed, and the explore default folder, both open and closed disappeared, and change to a plain white square picture. I have tried repeatedly to change the default open and closed folder, and they will not change until I actually had to deinstall icon packager to get them back to where they’re supposed to be. On another occasion, I changed the desktop icon for the recycle bin, and the rest of the folders on the desktop. Upon hitting the apply button, the desktop folders that I marked for change changed to completely different icons. For example, the recycle bin picture showed up on the network, computer shortcut and the control panel icon showed up on the network shortcut. I suspected the problem might’ve been with the size of the icons I was using and tried to different size but that didn’t matter either, Both the 128 pixel and the 256 pixel ones did not work.