Smurth Ok, Yeah Themes with subtheme structure I think really expand the possibilities specially for people that care about performance(concentrating pc resources depending on what youre doing)(!Let me see Explorer do That)
Regarding the theme switch I would still think that the LS Theme Installer (Omars) way of swithching theme and wall paper wallpaper(at the same time) with one click(no prompt) is better because It doesent requiere any modules to doit (If im correct what you mentioned requiered Textedit and lswchanger that specially on a subtheme structure wouldnt have to be loaded in every subtheme (to return to the maintheme) or in my case even on the main theme.