calcium.arcade ?

Hello,

the example _platform_system.py_ use a module called `arcade`. This module does not exists (_platform_system.py_ raise an `ImportError`).

What about this module ? Is it a an aborted feature ? Or not yet implemented ?

By the way, for some reason i can't run _pong.py_ and _windfarm.py_

Otherwise the tool looks great. Thank you for all this work !!

Start by inspecting the example files _platform_system.py_, _pong.py_, and _windfarm.py_, then run them to reproduce the reported ImportError and execution failures. Determine whether the `arcade` dependency is intended to exist or whether the examples should use another available module; done means the examples run without these reported failures or their status is clearly documented.

Written by the indexing model from the issue text.