sk1 traceback

Traceback (most recent call last):
  File "/usr/bin/sk1", line 15, in <module>
    sk1_run()
  File "/usr/lib/sk1-tk-0.9.2/sk1/__init__.py", line 26, in sk1_run
    main.main()
  File "/usr/lib/sk1-tk-0.9.2/sk1/main.py", line 150, in main
    application = SketchApplication(filename, options.display, options.geometry, run_script=options.run_script)
  File "/usr/lib/sk1-tk-0.9.2/sk1/skapp.py", line 165, in __init__
    TkApplication.__init__(self, screen_name=screen_name, geometry=geometry)
  File "/usr/lib/sk1-tk-0.9.2/sk1/skapp.py", line 62, in __init__
    self.init_tk(screen_name, geometry)
  File "/usr/lib/sk1-tk-0.9.2/sk1/skapp.py", line 200, in init_tk
    TkApplication.init_tk(self, screen_name=screen_name, geometry=geometry)
  File "/usr/lib/sk1-tk-0.9.2/sk1/skapp.py", line 69, in init_tk
    app.uimanager = UIManager(self.root)
  File "/usr/lib/sk1-tk-0.9.2/sk1/managers/uimanager.py", line 27, in __init__
    self.style = tkstyle.get_system_style(root)
  File "/usr/lib/sk1-tk-0.9.2/sk1sdk/tkstyle/__init__.py", line 64, in get_system_style
    style.colors = ColorScheme(colors.SYSTEM_SCHEME)
  File "/usr/lib/sk1-tk-0.9.2/sk1sdk/tkstyle/colors.py", line 113, in __init__
    self.import_gtk_colors()
  File "/usr/lib/sk1-tk-0.9.2/sk1sdk/tkstyle/colors.py", line 153, in import_gtk_colors
    colors[type+' normal']=gtk_to_tk_color(line[0])
IndexError: list index out of range