Outlook 365, how to go back to OLD ribbon graphics and icons

Geert Verschaeve    I agree with you.  The User Interface for all the office products are less usable and not as functional.  The new interface UI takes up more screen real estate, is at best clunky.   I understand the technical reasons for the interface being that it is web-based.  But from a UI standpoint it is not as usable and functional as the old interface.  Yea I know, I am just old school and get with the program!  Hey, banks are doing it too.  Their apps provide the same usability experience on desktops and mobile devices.  But to achieve that, companies like Microsoft and others have failed at the user experience!  The new apps are not as functional for humans.  The various functional areas of the app are not as clearly defined as the old apps leaving users viewing a confused blob of similar colors and shapes on the screen.   I have to use the new products for work.  But for home use we are digging out our disk and going back to some of the previous version.  Thank you for your time!