>
> FWIW, I think the source would be clearer if it used `?\u{CHARNAME}` 
> instead of the literal chars.
>

I did not know that feature exists, thank you!

Here's the updated patch, which is indeed much more readable.

And a screenshot of TUTORIAL.he, which doesn't seem unreadable at all (but 
of course that feature would need to be turned off for beginners who read 
TUTORIAL.he, it's meant for source code, not for prose).