I notice there is a new Floating [Back] button and To Top and Bottom buttons, at least in my browser view. Is there any way to disable that from account preferences (or make it a configurable option)? It may be a browser rendering issue but the To Top and Bottom buttons are partially overlaid with Back button and come in and out of view while scrolling. I realize there was probably a motivation to enable this but I personally find persistent (non-contextual) floating action buttons distracting. With most devices providing touchpad or touch screen controls, going back a link is often faster through a gesture than navigating to an always on action button, and same for scrolling. I haven't looked closely so maybe the Back button is providing deeper context to a specific part of a thread etc than a generalized back navigation from the browser logic. Another thought might be to reduce the transparency of the back button to make it stand out less.