Rock/Alpine mode is unclear
Changing mode displays a new screen indicating the status has changed, and then to actually see the homepage or route index again in the different mode you need to click the heading for home or route index again (refreshing the page does nothing). Suggest some kind of redirect to the page you are currently on so clicking this toggle doesn't leave the user stranded.
In addition - it seems like the only sections that changing the mode actually has an impact on is the home page and the route index. Perhaps this toggle should just be displayed in these sections - having it globally is a bit confusing since it doesn't actually change the display for any individual route/peak/crag pages.