A syntax highlighting editor might be useful for editing code where you can't use external editors (servers, for example)
I tried doing it and it went... ok?
So, first i tried porting CC's edit over, and that didn't work for some reason.
Then i tried porting the syntax highlighting of CC's edit to OC's edit, and that went buggy (but still works-y)
If you want to finish my efforts on adding syntax highlighting to the OC edit, you can get my buggy code here.
But if there already is a syntax highlighting editor for OC, would be appriciated if you gave a link to it.