In Moodle 1.9 it was possible to code a dropdown menu with theme-switching so that users could select a prefered them from the menu rather than their profile. Moving to Moodle 2.3 I've found the custom menu is a great improvement as it only needs to be defined or updated in one place, and the capability exists to enter the theme name into the url to switch. If you want the user to be able to stay on the current page rather than jumping to a specified page (eg home page) it's difficult to achieve without being able to add code to the custom menu - if the details are left as (eg -Theme 1|?theme=binarius ) the new theme loads on the current page but generates a missing parameter error. I've also tried &theme= but that led to a page not found error. Can the custom menu settings be modified to provide a more seamless theme change option - this has implications for enabling accessible themes and usability/personalisation in general.