Feedback button hard to find
It is really unclear from the release notes that the feedback button is the second one from the left when a Visio file is being viewed. Why on earth wouldn't this be available from the main page (documents list) as well? Frankly, some of the icons are hard to identify. The right-hand one is easy (full screen) but the second-from the right apparently zooms back to full page view, which is unclear (and should be disabled when already in that mode, right?).