As a spinoff of the discussion of category intersections on
The tool will add a new link beneath the category list of a page. A
click will open the list of categories of this page(/image) as
checkboxes. Chose two or more of these, and you can preview 20 files
in that intersection, or go to the toolserver to see them all.
To use, add
to your monobook.js. We can turn it into a gadget if wanted.