I can't find the transparent option, where is it? I'm not sure what you mean by the tool tip hghlight colour, sorry, you know about all the options in prefs I presume. I'd like to be able to change the object and outliner background colours too, maybe in a later release. Actually I think the whole app would benefit from a professional looking GUI, it looks a bit home grown at the moment. I don't think it's one of Bjorn's priorities though. I suppose, being open source someone might write a patch that allows skinning one day. Of course this is being really picky, otherwise I LOVE THIS APP!!!! Baz