I would prefer to have an option to turn colors off. I honestly find it annoying when trying to look at and understand code. And since it is not a true parser it will not get things correct all the time so occasionaly it will bite you. The other improvement I like thanks for doing them. And thanks for doing the color also.
For me I have found color coding code to be a distraction when I am trying to read it. They cause context switches and make the parts of code much more seperate.