For those Linux users. Adds syntax highlighting for OpenSCAD files in the kate (and thus kwrite, among others) editors.
Install openscad.xml into your kate syntax file directory. For me (Kubuntu), this is:
Note: You must re-open kate/kwrite to recognize the new file. You may also have to manually set the highlighting via "Tools->Mode->Other->OpenSCAD"
Adapted from the notepad++ syntax file and the povray.xml syntax file which came with kate.