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- Confluence
- Darker on hover, no change on active, and nothing for the tracks.
- As I write this there's a bug where the vertical scrollbar won't even let me select it, because the sidebar's expand/collapse clickable area overlaps the scrollbar's area.
- YouTube
← The sidebar has a very thin scrollbar that pops up when you mouse-over the sidebar.- The main window scrollbar behaves the same way: it pops into view when you mouse-over the main window.
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