Wow, why do I only see this now? This is amazing! You should really add it to the package manager.
I've been coding in Galaxy almost right from the beginning. It just seems so much faster and cleaner to me (if you have some coding experience). I've also been using Sublime Text most of the time, but just in normal C language mode, which can be annoying sometimes. I even thought about creating some addon like yours on my own, but never found the time for it. Now I don't have to anymore :)