$ git clone git://github.com/matts1/pygments-style-idleclassic.git
$ cd pygments-style-idleclassic
$ (sudo) python setup.py install
>>> from pygments.formatter import HtmlFormatter
>>> HtmlFormatter(style='idleclassic').style
<class 'pygments_style_solarized.light.IdleClassicStyle'>
pygmentize -S idleclassic -f html > idleclassic.css