Hi, Thanks for your work on the plugin. It looks great. This is more a feature request I think.
I'd love it if you could set the height of the thumbnails to ~300px (as well as width) and still have the overall height of the display box set to ~1200px, i.e., have 4 rows of regular height tiles. At the moment if you set the image height to a low value you end up with a short page and one row of images.
Also, could you change the text on the bottom button from 'more campaigns'. People rarely call their newsletters 'campaigns' when they're referring to them publicly. Just make it 'More' or 'Older'.
Thanks heaps for the work.