/usr/share/pyshared/IPython/frontend/html/notebook/static/codemirror/theme/neat.css is in ipython-notebook 0.12.1+dfsg-0ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 | .cm-s-neat span.cm-comment { color: #a86; }
.cm-s-neat span.cm-keyword { font-weight: bold; color: blue; }
.cm-s-neat span.cm-string { color: #a22; }
.cm-s-neat span.cm-builtin { font-weight: bold; color: #077; }
.cm-s-neat span.cm-special { font-weight: bold; color: #0aa; }
.cm-s-neat span.cm-variable { color: black; }
.cm-s-neat span.cm-number, .cm-s-neat span.cm-atom { color: #3a3; }
.cm-s-neat span.cm-meta {color: #555;}
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