Comment 4 for bug 1019590

For now, this can be worked around, for LightDM at least: use a custom theme with all of your settings, and copy it from `~/.local/share/onboard/themes` to `/usr/share/onboard/themes/`, and point LightDM to the theme by specifying the `-t` flag to Onboard. It seems that LightDM doesn't have permission to read from the user's home directory (I'm guessing - I can't actually find any relevant logs).

Of course, this only works for settings which are part of the theme, which annoyingly doesn't include transparency.