When I select “Page View” from the menu or icon, the editor background changes color (grey) and that is all. When I uncheck “Page View” the editor background color remains and does not return to my default (black). Besides the color issue, I’m assuming this feature was not implemented (did see it in the notes). 
Thanks. This has been filed.
Sorry, meant to write “I did NOT see it in the notes”. Thanks for filing.