Not ideal, but this cleans up the screen on break:

ON ERROR LAYER CLEAR : SPRITE CLEAR : BORDER 7: ON ERROR : STOP

Not ideal because you need to restore this error handler if you add any specific error handling.

Learned at 23-May 2020 @ 10:00 about spectrum. [Edit this post](https://github.com/remy/remysharp.com/blob/main/public/til/spectrum/screen-clean-up.md)