As neutrino windows can have a theme which does not always match frame and titlebar (especially for MS windows) I woluld like to open a window without frame and titlebar so that everything is completly customizable (if necessary a custom titlebar could be created out of a small container with an image (app-icon), a label titlebartext) and 3 small buttons (minimize, maximize, close) - or whatever you like to have here) and even frame could follw the chosen theme. What do I have to do, to get such a window?