It feels like I'm missing something really simple here. I've been using Coda for a while now and I'm now playing around with Textmate. I'm unable to find a way to syntax highlight function calls in Textmate. I've poked around the documentation but can't believe I'd have to dig deep into Textmate and mess around with regex to make this work.
This is in textmate: http://imgur.com/acACa.png
Function calls are inheriting the foreground color. This is javascript but I get the same in PHP.