@simevidas probably, it's not a critical issue I have - but it seems like it would be (more) useful to be able to access the width of a scrollbar for various layout calculations so I'm more wishful for that. Like I said, I haven't properly figured out how to best use scrollbar-gutter - it just seems to create a different set of things to think about rather than being a solution in itself (for me). Creating space for a scrollbar where there is no scrollbar needs appropriate design handling too.