I wanted to send a message to the developer team, privately, to give some constructive feedback, but there seemed to be no way to do this so I suppose I will have to mention it in front of the whole community, rather than be discreet about it, as I had hoped to be able to do.
I use DropBox paper, every day, as an alternative to Google Docs, since I was unable to get into Google Docs numerous times as it went down, lost everything, and it's spell checker plays up (on some accounts, not others). I'm not a developer, I'm a master's degree student (classical studies) and haven't been a programmer since the late '90s, when I studied it at college.
I liked some of the updates on Drop Box paper, it's been getting better (such as Dark Mode). Then, this morning I wake up to keep writing my final dissertation and all of the files on the left hand side have crap looking grey slide-bars, which look very unprofessional (unlike say, Scrivvner, for instance) just in case you can't remember what a file was despite the fact you can still see the first two dozen characters. Hints look better. It just looks garish and amateur-ish. I feel ashamed to use it. If anyone else looks on-screen it just looks awful.