title: Change font & background color in ipython notebook
body: <p>How to change the C:\Python32\Lib\site-packages\IPython\frontend\html\notebook\static\css
  file in the iPython notebook directory without destroying the source file?</p>
  
  <p>I just want to have a black background in the notebook, and then have orange text colors with blue or whatever for classes and functions. </p>
  
  <p>Can anyone help in this one? I know where to find the source files but not how to modify them. </p>
  
  <p>I appreciate any answers. Thanks everybody. </p>