There is a proposal to add some of the old missing box drawing characters to Unicode, in a section called "Graphics for Legacy Computing": http://www.unicode.o

There is a proposal to add some of the old missing box drawing characters to Unicode, in a section called "Graphics for Legacy Computing": http://www.unicode.org/L2/L2017/17435r-terminals-prop.pdf http://www.unicode.org/L2/L2017/17435r-terminals-prop.pdf They have been implemented recently in the Pragmata Pro font I use, which seems to just keep adding glyphs https://www.fsd.it/shop/fonts/pragmatapro/ https://www.fsd.it/shop/fonts/pragmatapro/