Showing underline in accelerators by default
On XFCE (and GTK+2) all the themes by default hide the keyboard accelerators of buttons, menu items, etc, and they only become visible once ALT is depressed. I find this irritating as I am a heavy keyboard and find that having to depress ALT to view available shortcuts cuts the flow of thoughts
Three widgets inside resizeable panes
How can I implement three widgets inside horizontally resizeable panes, as given: +-+-+-+ | ! ! | | ! ! | | ! ! | | ~ ~