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To: python-list@python.org
From: Terry Reedy <tjreedy@udel.edu>
Subject: Re: Has color "Green" changed from Python 33 to 34 ?
Date: Thu, 30 Oct 2014 13:57:14 -0400
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On 10/30/2014 8:20 AM, Peter Otten wrote:
> ast wrote:
>
>> I just updated this morning my Python from a 3.3rc to 3.4
>> (Windows) and I noticed that the 'Green' color in tkinter
>> GUI is not the same at all.
>>
>> 'Green' in 3.4 is very dark. I had to replace it with 'Lime' to
>> get back a nice 'Green'.
>
> More likely the color is defined by tcl/tk rather than Python, and your
> Python installations use different versions of tcl.
 > Searching for 'tcl/tk
> color definitions' finds <http://wiki.tcl.tk/1424> with the following
> statement
>
> """From Tcl/Tk 8.6 on, Tk uses Web colours instead of X11 ones, where they
> conflict.
> """

3.4 switched from 8.5 to 8.6

> and according to
> <http://en.wikipedia.org/wiki/X11_color_names#Clashes_between_web_and_X11_colors>
> "green" is indeed one of the affected colors.

-- 
Terry Jan Reedy