Looks nice, especially in the full screen mode. Not sure what this is for though. Anyone care to enlighten me?
Browsers are resource hogs, and they mostly used to run antiquated JavaScript. Creating a responsive, nice-looking "OS" desktop in a browser is something akin to code golf. It's a demonstration of skill at least.
Not quite sure that anything could be called a Kernel by any measure, but there's certainly a lot of stuff in there.
Oh, and I apologize in advance for your loss of brain cells. Some of that code is around seven years old.