How to make thumbnails bigger in "Thumbnail View"?

I found a similar question for the hosted version of Razuna. But what do I do if I host Razuna myself?

There is a lot of unused white space when I use thumbnail view. And the pictures are just so… tiny. Hovering over every single pictures just to be able to properly see it really slows down the work speed. Is there any way to make them larger?

The recent version of Razuna has a grid that fills in those spaces automatically. Though, there is always some constraint. Thumbnails can’t be made bigger, i.e. how they display in the grid. You can change the CSS, though.

Okay, I see. Thanks for your reply!