It would be really nice, at least for me and the use we give to trac in my business, to have a macro that could display several images like a gallery.
Something like this:
Error: Failed to load processor ImageGalleryNo macro or processor named 'ImageGallery' found
Would render a strip like preview of the images matching the Installation.*\.png regex attached to the wiki page. It should use javascript so one could scroll throw the strip.
Clicking the image should redirect to the attachment preview/download page.
I browse a little trac-hacks and found nothing similar to this, sorry if this is a duplicate!