Nautilus sidebar theming is confusing

Status changed to 'Confirmed' because the bug affects multiple users.

I agree to this bug. I think the sidebar should have the same background, labels and icons.

As far as I can tell, you need to look for "placessidebar" in:
/usr/share/themes/Ambiance/gtk-3.20/gtk-widgets.css

But there's a lot of complexity there. I can't tell what does what.

Not sure how this can be solved... Something like https://i.imgur.com/ZVXQ1ku.png ?

Not sure how this can be solved... Something like https://i.imgur.com/RA9esFK.png would be better?

I think there are just too many columns. The icons and labels should have the same background colour. So one column instead of two.

Same as the design of the side bar in http://news.google.com - one background for icons and labels.

I think that's a too big change, and Ambiance-RW that was ack'ed by design had this two color situation.

One thing we could do however, which won't involve much change nor break visual, could be just leaving the item selected with orange background, so although there are two colors, it should be pretty visible what they refer to.

Something like this, to be more clear: https://usercontent.irccloud-cdn.com/file/DwPJt7na/image.png

(maybe with a darker bg in the icon area to keep some consistency)

I think that would be OK as a solution, but not ideal.

I don't know anything about Ambiance-RW's motivations but it seems like poor UI design to have two separate background colours. Each row is a single object made up of an icon and a label. It's visually confusing that each object is split across two columns.

That is true, it should be the same color for icon and label as they are one item.

Two more solutions:

* Make the background the same but keep a line between: https://i.imgur.com/ilhA6Zr.png
* Make the background the same and remove the line: https://i.imgur.com/qS0ODeq.png

(I based the images of Marco Trevisan's, hope that's OK :-) )

I think the latter solution - keep the dark background but remove the line - makes the most sense. Can this be SRU'd to 18.04 when done? I think this is a significant enough design bug that an SRU should be done? Regression potential would be, perhaps, that updates (the change from the buggy UI to the new UI) don't produce the intended result (though updates can easily be tested for).

Oh, except for a less dramatic deviation from the current design the sidebar should have orange text and an undivided dark background, I think, rather than an orange line, as in the most recent imgur. Probably the lighter shade of gray should be used.

I also agree that https://imgur.com/qS0ODeq would be best.