The docs for [kiss_ui::show_gui](http://kiss-ui.github.io/kiss-ui/doc/kiss_ui/fn.show_gui.html) state "The closure argument should initialize and call `.show()`." and the docs for [kiss_ui::dialog::Dialog](http://kiss-ui.github.io/kiss-ui/doc/kiss_ui/dialog/struct.Dialog.html) state "This does **not** make the dialog appear on screen. `.show()` must be called after the dialog has been configured." There doesn't appear to be any `.show()` method though.