A court filing is not a job application or a college applications or trying to get funding for your company. It's one shot. Not the type of risk that makes any sense at all. Good for publicity though if that is the idea.
In any case the attorney (OP) says:
> Some courts mandate certain fonts, font-sizing, spacing, and margin size. Let's hope the U.S. District Court for the Eastern District of Pennsylvania doesn't.
Not sure how it can be any clearer (re: my point) than that.
Note also that I didn't say 'not allowed' but that it was a 'risk'.
Now perhaps the attorney that filed this knows something about the judge or court. My comment was for HN as a general point which is valid I feel.
Let's say you are meeting a new girlfriends family for the first time. You decide to show up in a clown suit. Sure it's possible that the parents might think that's great but also a risk that they will think you are foolish for doing so. (Ditto for most appearance related things).
[1] I get paid highly for strategy (non legal).