So, I noticed recently that all document type icons have a new, generic look to them… small icon within a rounded corner box that just has a tiny shape and maybe some text, but was much easier to quickly identify at a glance when it was color coded, such as the orangish-yellow icons for AI (as in Adobe Illustrator, not this other newfangled AI malarkey 
), red icons for PDFs, etc.
Not the biggest issue in the grand scheme of things, but, yeah.
(Not to mention the other minor-ish recent changes to the interface – that just seemed to hit this morning, or at least since I left work yesterday – that we have to get used to… again.)