I am missing the icons in front of the items and things when displaying them on the lefthand sidebar.
See this screenshot:
Looking at the examples in the README I would expect icons like a folder (for groups) and specific ones for different item types in front of the text.
What could be missing? The connecting to the openHAB instance is working (the actual values are displayed).
Good question ! One can see it as cosmetic, but from my point of view it is more. And I think that the reasons of the developers to have that feature were no cosmetic reasons.
With this icons it is possible to see if a Thing is online or not. But also you can see, if your channels are linked to an item or not, so it is very helpful to create an item(s) from a channel(s) via the context menue.
And for example one can see channels which are not linked to an item but are not shown in PaperUI.
So for me this is a very helpful icon(function) and I think this was (is) for many others too.
I first posted my observation in the german community, but then I found this topic here.