I may point out that Kanji is not installed by default in some occasions
on my sadly way too old computer, all kanji on shows up as a rectangle
I tried to install it on my PC, but since my version of windows XP, like all non free-ware programms on this PC, is a pirated copy, I have no such thing as a "installation CD" which seems to be required
I doubt that anything but unicode is a proper option
As its been stated, the Game doesn't call the ASCII character set from your computer libraries, it calls the character set from its own library. So, its a none issue if asian character set aren't on your computer.
If my brief forays into coding are to be trusted, the colour limitations are probably to do with the libraries Toady uses. A lot of the old bay12 games used Curses and that had the same colour limitation.
I could be horribly wrong though.
I think there less of a chance of this happening, with Kanji, or with most asian scripts then there with ASCII set. Though what would be the chances of a
[C]at h[U]man, [N]aked mole dog, [T]iger in that one special way to be possibly offensive.
As for it having presence, I didn't mean to insinuate, that it was accepted just, that it would be recognized as 'oh, that noth language type dealie, okay. loo[k] at that, its a Green. Much in the same like you don't need to know that the Statues are represented by Omega Symbol (FUCKING GREEK HOLY HELL), of that weapon racks? are the square root signs. It just a picture to represent something.
I picked more characters to keep in theme with the ascii feel, while providing a deeper pallet.
Edit: Used the underline tag accidentally