I'd like to see a module which would switch Theme, templates and modify blocks all at once based on config scripts. The limitation with XOOPS themes is they are supposed to be used in conjuction with template sets but the themeswitcher ignores template sets. There is probably a good core hack to fix this (when you switch theme you switch to a template set of the same name) but i'd prefer to see a good module to address this oversight in the XOOPS administration design.