That's a very dodgy thing to try to do, because the layout sizes are "baked in" to the JustifiedGallery script and the album-wide CSS. But I can fully appreciate why you want to do that here.
I've tinkered with it a bit, and for this one, limited application, you can get there with some custom code trickery. Head for
Neptune > Code > HTML, and for the top box, check
Top level only. Then enter this:
<style>
#ne-fthumbs {transform: scale(1.5); transform-origin: top;}
.ne-credits {margin-top: 125px;}
</style>
You can experiment with the
scale value, but you'll then have to meddle with the
margin-top on the credits line. In short, the credits line doesn't know what's happening with the enlarged folder thumbnails, so you have to force it down the page with some fixed value.
I make no promises about what this will do on a small display, like a phone. You're on your own on that score.
