I tried making on in Photoshop, but for some reason the files don't save properly. Is there some setting I have to use to get the images to work properly?
I found this on softpedia. Credit to Robert Izsaki. Place the attached files in the resources folder of your Dock.app. Repair permissions. Put the dock in 2d mode.
I was surprised this worked as nobody seemed to report anything on it.
This modification is causing some strange behavior. Some buttons dont respond. eg Repair permissions button in Disk Utility wont respond. However, move the dock to the side of the screen and the button responds
I dont know why. Beware.