Hi et voilą,
the four foxes is simply, because I wanted to have a 128x128 thumbnail, and the resource ficture I had access to was only 48x48, so I multiplied it, but only for big-icons.
Now the dock always shows big icons, so you see the four foxes (Did you see the four foxes, when you opened the disk-image?).
The transparent fox wasn't really intentional, but I left it so, because I somehow liked it (And it took quite some time to get that icon-prog to do my bidding
).