I use JSF and Primefaces for development. When using JSF specific tags the code is not highlighted. I've attached a picture. When I disable JSF plugin, it is properly highlighted but without JSF support. My version of Intellij IDEA is 15.0.3. Also, I use a custom color scheme, this one - http://color-themes.com/?view=theme&id=563a1a7680b4acf11273ae92
How to make it work as intended?