I use xterm. (However, there are some problems with it such as the pieces of big Sigma cannot be displayed (I think because it uses Unicode for conversion; you

I use xterm. (However, there are some problems with it such as the pieces of big Sigma cannot be displayed (I think because it uses Unicode for conversion; you cannot just use fonts with the specific encodings directly, which I would prefer it to do), and some other problems; but it also has some advantages such as using Xaw and using bitmap fonts.) Maybe some time, I can write a better one, possibly. (One idea I have also is a kind of "secure universal escape", which might possibly use /proc file system if necessary, that would ensure that the state of the terminal is correct after the prompt is returned (and possibly also to check that the prompt is not being faked). The other idea is to not use Unicode.)