I was recently looking into adding a tag cloud to show all the attachment tags in a nice way, and while that works (with Better Tag Cloud) my theme seems to be missing the functionality to actually show the results of an archive search through the tag cloud (URL ending in .../attachment_tag/yellow or whatever doesn't give me any results).
I was hoping to find a way to incorporate [mla_gallery] into the archives for attachment_tag and attachment_category, creating "archive galleries" for my image attachments. The result should be similar to this: http://www.alex-kunz.com/portfolio/blue/ (which simply shows all images tagged "blue" and renders them through Justified Image Grid, but I've set this up manually with a hard-coded tag "blue" of course).
I do find an "archive.php" for my theme, but when used with attachment_tag or attachment_category, it doesn't return any results, so obviously, there is something missing.
I would imagine this should actually be as simple as [mla_gallery attachment_tag="%S"] in an archive template, but I don't know where to start.
I hope it's clear what I mean. :)