Ohmygod!! That is too cool! (I can say that because the unicode font I'm using at the moment happens to have those characters...)

But now I want unicode "control pictures" for values between 0x80 and 0x9F, if any such set exists -- I don't recall whether the VT-100 ever came to terms with those. Hmmm, if necessary, I guess one could just use the "low-table" pictures with a different color, or reverse-video, or bold, or something like that.