After digging through the code a bit, looking for a way to make the shrunk images a bit larger, I found this line which defines the shrunk image height. It looks like it takes the height - 6 * borders - 4* info height - top padding (which is currently 10% of page height).

var targ = { w:arrayPageSize[2] - (Lightbox.borderSize * 2), h:arrayPageSize[3] - (Lightbox.borderSize * 6) - (Lightbox.infoHeight * 4) - (arrayPageSize[3] / 10) };

It would be awesome if instead of distance from top being an option, it was instead top/bottom padding, and then you could calculate it something like this.

var targ = { w:arrayPageSize[2] - (Lightbox.borderSize * 2), h:arrayPageSize[3] - (Lightbox.borderSize * 2) - (Lightbox.infoHeight) - (arrayPageSize[3] * 2 / topPadding) };

I actually tested this, and the image actually comes out a bit to big, I think because their is some extra height added in somewhere else.

Anyways thanks for the module, it is fantastic.