Would the solution to this be to render the direction switch control character similar to how some text editors will render 0 bytes as a glyph with the text NUL

Would the solution to this be to render the direction switch control character similar to how some text editors will render 0 bytes as a glyph with the text NUL? You could still render everything after it with the reversed direction, but it provides a visible indicator that it's been done. It might be a little annoying for people who use RTL languages, but it seems like the benefit may outweigh that.