That's it. That's the whole program (except for the GlowScript version header line that is supplied automatically). The key point is that lots of sensible defaults are built into the GlowScript ...

This package enables one to run VPython in a browser, using the GlowScript VPython API, documented in the Help at https://www.glowscript.org. If the code is in a cell in a Jupyter notebook, the 3D ...