Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/Onboard/OnboardGtk.py", line 86, in do_activate
    self.init()
  File "/usr/lib/python2.7/dist-packages/Onboard/OnboardGtk.py", line 101, in init
    config.init()
  File "/usr/lib/python2.7/dist-packages/Onboard/Config.py", line 256, in init
    self.apply_theme()
  File "/usr/lib/python2.7/dist-packages/Onboard/Config.py", line 547, in apply_theme
    theme_filename = self.theme_filename
  File "/usr/lib/python2.7/dist-packages/Onboard/Config.py", line 519, in get_theme_filename
    "." + Theme.extension()))
  File "/usr/lib/python2.7/dist-packages/Onboard/ConfigUtils.py", line 275, in _get_user_sys_filename_gs
    system_filename_func)
  File "/usr/lib/python2.7/dist-packages/Onboard/ConfigUtils.py", line 318, in _get_user_sys_filename
    .format(description=description, filepath=filepath))
KeyError: u'filename'