Easy theme change in the get parameter. Can be used theme to demo. this to be a per-session only change, and one that everyone (all visitors) can use.
How to use
I just enter the following URL. It's easy.
http://wordpress_install_domain/?theme_changer=theme_folder_name
תוסף זה זמין להורדה ולשימוש דרך שברשותך.