Here is an XML for Cython syntax highlighting in katepart (e.g. KATE and KDevelop). I made this because KATE is my faviourite text edior (feel free to call me a heretic for not using emacs). Unfortunately, the Python highlighting for KDE contains several bugs. And the Pyrex/Cython version that circulates on the web builds on this and introduces a couple more. I have tried to clean it up. Note that this will also highlight numpy.* or np.*, if * is a type or function you get from "cimport numpy" or "import numpy". This works on Windows as well, if you have installed KDE for Windows. Just copy the XML to:
~/.kde/share/apps/katepart/syntax/ C:\kde\share\apps\katepart\syntax (or whereever you have KDE installed)
and "Cython with NumPy" shows up under Sources. Anyway, this is the syntax high-lighter I use to write Cython. Feel free to use it as you wish.
P.S. I am also cleaning up Python high-lighting for KDE. Not done yet, but I will post a "Python with NumPy" highlighter later on if this is interesting.
P.P.S. This also covers Pyrex, but add in some Cython stuff.