Is it possible to make custom syntax highlighting?

[ghost]

First and foremost, thank you for this very nice text editor. I want to add syntax highlighting for a programming language based on Go. The syntax is basically the same as Go, only that the developer doesn't like Go's data types naming so he named them differently. He preferred C-like names, for example: he will use double instead of float64. Text editors like Geany make it very trivial to create custom syntax highlighting support for that language. Is it possible with skylark?