Agreed. But using an entire character-width for that purpose is extravagant in this example (use of background colour would be better. Right now, some of thos

Agreed. But using an entire character-width for that purpose is extravagant in this example (use of background colour would be better. Right now, some of those windows are !0% border). In a larger area, you can use unicode or even the drawing characters in MS 8-bit ASCII for a single-pixel hairline plus padding for both windows' text). I guess my take is that this is sacrificing an awful lot of real-estate to simulate overlapping windows, which is a feature of dubious utility in a pure text environment. "Users expect them" is probably the most common and egregious excuse for bad UX design, but I do understand why.