Feature request - some styling aspect selectable by preference to enable it to look different from finder windows. Fonts could be used to achieve this but changing fonts tends to impact on readability (the finder’s fonts are well-chosen and I use the same ones - so my windows look like finder windows). Background color (e.g. of the sidebar or the toolbar if poss) would do it, or something different maybe in toolbar space - some way to make it look different for people who want to do that.
I remain very impressed with this app.