Right now in our documentation, ESC D is defined as the VT sequence CUB. However, in the vt-100 spec, ESC D should be IND.

In fact, I'm not sure that any of what we have on ESC A, ESC B, ESC C, ESC D (source) is correct. I vaguely recall something about ANSI.SYS for those sequences, but I can't be sure.

We should investigate if those sequences are being handled correctly, and if they aren't, make sure they are fixed.

And update the documentation with whatever we find.