The colors are controlled by IPython. You should be able to create a file 
$HOME/.sage/ipython-0.12/profile_sage/ipython_config.py with the lines

    c = get_config()
    # Set the color scheme (NoColor, Linux, or LightBG).
    c.TerminalInteractiveShell.colors = 'Linux'

for example, to change the color scheme. See 
http://ipython.org/ipython-doc/rel-1.0.0/config/old.html#color for some 
more information. You can also run "sage --ipython config -h" for a help 
message about configuring IPython.

It might not be a bad idea to have several of our own pre-defined color 
schemes, with switches for the as Jan suggests...

  John





On Sunday, March 9, 2014 8:13:02 AM UTC-7, Jan Groenewald wrote:
>
> Would be nice to have a general theme toggle. background=dark or 
> background=light, like vim. Also, on systems with default black background 
> terminals, background=dark default would be nice.
>
> Regards,
> Jan
>
>
>
> On 9 March 2014 01:05, Nitin Prasad <[email protected] <javascript:>> wrote:
>
>> Hi all,
>>
>> I've started using Sage (mostly from the command line) and I've noticed 
>> by default a lot of the output text is colored blue. This is very difficult 
>> to see on the background of the terminal, so I was wondering if there was 
>> any way to change this easily? There was one topic posted here a while ago 
>> but that was about changing the color of the text on the notebook; I want 
>> this for the command line.
>>
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>
>
>
> -- 
>   .~. 
>   /V\     Jan Groenewald
>  /( )\    www.aims.ac.za
>  ^^-^^ 
>  

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