What exactly causes a backslash \
to be formatted as red inside the $ $
environment? I know that in commands like \\
and a\ a
(the second being backslash space to force a space), the first slash is red, but haven’t found any other cases.
Why is this the only case of syntax formatting in MathJax (that I know of) other than just making the $
the accent color and the rest as grey monospace italics?