When I download the patch and run the tests, I get a lot of warnings (mostly on custom themes and custom keysets).  I also get errors in test_parenmatch like this one:

ERROR: test_paren_styles (idlelib.idle_test.test_parenmatch.ParenMatchTest) (style='expression')
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Traceback (most recent call last):
  File "/home/cheryl/cpython/Lib/idlelib/idle_test/test_parenmatch.py", line 64, in test_paren_styles
    pm.flash_paren_event('event')
  File "/home/cheryl/cpython/Lib/idlelib/parenmatch.py", line 98, in flash_paren_event
    self.create_tag(indices)
  File "/home/cheryl/cpython/Lib/idlelib/parenmatch.py", line 154, in create_tag_expression
    self.text.tag_config("paren", self.HILITE_CONFIG)
  File "/home/cheryl/cpython/Lib/tkinter/__init__.py", line 3364, in tag_configure
    return self._configure(('tag', 'configure', tagName), cnf, kw)
  File "/home/cheryl/cpython/Lib/tkinter/__init__.py", line 1470, in _configure
    self.tk.call(_flatten((self._w, cmd)) + self._options(cnf))
_tkinter.TclError: unknown color name "000000"