Re: Terminal matrices

[martin rudalics]

> If you're interested, I've pushed something new. Now with GLYPH_DEBUG
> support, and even more rough in the code. But I guess at this point only
> the idea counts to see if it flies. BTW, what I had yesterday was kind
> of right, but I overlooked two things, most notably the window matrix
> mirroring.

Works well here.  Please move it to master so we can get immediate
feedback from corfu/posframe users (I don't use them).

martin