So I've had this problem for quite some time. I'm using the Leopard Theme and I noticed that when I want to make the dock icons smaller than 53 pixels, the table starts to bend.

Is there a way to fix it so the table doesn't distort or is this something you are still working on fixing for future updates?

The Leopard theme features a 2D dock background bitmap trying to represent a 3D background. As such, the background will distort when proportions are not correct - try increasing or decreasing the size of the icon reflections.

This is an issue with every dock, obviously, as docks are not 3D renderer programs.

Make the dock thinner as in real leopard