it sounds like you're confused about something. there are not litestep themes and skins, only themes. and litestep itself can only load litestep themes, it can not load Trillian skins, Opera skins, WindowBlind skins, etc. there's a litestep utility (lsts) that used to allow us to set a wallpaper, set a windowblinds skin, and a couple other things, but it hasn't been in wide use since 24.7 came out.