2017-10-17 17:21:00,365 ERROR:base_events:Exception in callback Core.on_input_readable()
handle: <Handle Core.on_input_readable()>
Traceback (most recent call last):
  File "/home/woffs/git/poezio/poezio/theming.py", line 436, in to_curses_attr
    pair = curses_colors_dict[colors]
KeyError: (247, 239)

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/lib/python3.5/asyncio/events.py", line 126, in _run
    self._callback(*self._args)
  File "/home/woffs/git/poezio/poezio/core/core.py", line 663, in on_input_readable
    self.do_command(replace_line_breaks(char), False)
  File "/home/woffs/git/poezio/poezio/core/core.py", line 825, in do_command
    self.current_tab().on_input(key, raw)
  File "/home/woffs/git/poezio/poezio/tabs/rostertab.py", line 1017, in on_input
    return self.key_func[key]()
  File "/home/woffs/git/poezio/poezio/decorators.py", line 19, in wrap
    self.core.refresh_window()
  File "/home/woffs/git/poezio/poezio/core/core.py", line 1471, in refresh_window
    self.current_tab().refresh()
  File "/home/woffs/git/poezio/poezio/tabs/rostertab.py", line 999, in refresh
    self.avatar_win.refresh(row.avatar)
  File "/home/woffs/git/poezio/poezio/windows/image.py", line 40, in refresh
    self._display_avatar(self.width, self.height)
  File "/home/woffs/git/poezio/poezio/windows/image.py", line 81, in _display_avatar
    self.addstr('▄', to_curses_attr((bot_color, top_color)))
  File "/home/woffs/git/poezio/poezio/theming.py", line 439, in to_curses_attr
    curses.init_pair(pair, colors[0], colors[1])
_curses.error: init_pair() returned ERR