Sort of :) Explore the "c drive" to learn about the libs. I couldn't find an uncompressed version of the main code, but in the Chrome devtools most scripts are uncompresed.
Amazing that this was built in HTML/JS/CSS.
Terrifying one might say
Well. It's still certainly easier than writing it from scratch, or through C/C++ and Windows GDI APIs.
One thing I can't figure out is how they implemented shaders in the FX program with the whole thing being rendered on the DOM instead of a canvas.