Troubleshooting

[sway] Submenu not scrollable

This is a bug either in sway 1.2, or GTK: if the menu height exceeds the screen height, it becomes partially unresponsive. The script uses a tricky as hell workaround, but you must specify how many entries fit in your screen vertically. By default it's 30. If it's too much to your screen, try the -t <T> argument w/ a value < 30.

[sway, i3] Menu does not position properly in the screen corner

Try increasing the delay length. The default value is 100 milliseconds, and on my laptop it works well down to 30. Slower machines, however, may require higher values. E.g. try using -d 200 argument.

[i3] Overlay first displays as a tiled window

Add this to your ~/.config/i3/config file:

for_window [title="~sgtk-"] border none, floating enable

[i3, Openbox] Overlay behind the menu / button bar is not (semi)transparent

You need compton or equivalent X11 compositor.

[Openbox] The menu always appears in the top left corner

You need the pynput python module. Install optional python-pynput package or use PIP.