I have table visualizations with many columns containing images. Currently each image is surrounded by some amount of space in it's cell. I would like to be able to eliminate this spacing, so that the images are right next to each other, just separated by a thin line. Why? Because it looks much better. It should be possible for the user to define the cell padding, both horizontally and vertically. When the images are small and there are many of them, the spacing makes the display unusable.