I am and have been running a discourse install for a client for a few months. The client asked me the other day if it was possible to make the profile pictures square. Knowing it had already had been done here, I figured before I went digging through the css for the appropriate class, I would ask here. @wendell thoughts?
While I feel wendell most likely has a more than over the top answers.. I feel the need to point out that this question (while helpful to this forum) could probably better be answered and you could probably be better assisted over at Meta Discourse.. I have an account there too.. It requires making one but they are very welcoming and very helpful to all users regardless of standing or newness (NOT A WORD HAHA)....
Here is a link
Meta.Discourse.Org