[XeTeX] Diacritics in color

[Karljurgen Feuerherm]

I seem to recall from the days when I was doing demos/mock-ups for the
cuneiform encoding proposal that SIL's graphite/WorldPad combo allowed
one to do things of this sort; it involved specifying sub-areas in
special font tables, which the software of course had to know about.

Not sure whether that's useful to this discussion, but thought I'd
mention it.

K

>>> On Wed, Nov 30, 2011 at  6:31 PM, in message
>>    f\textcolor{red}{f}
>
> In this case FireFox colourises half of resulting ff ligatures (1/3
in
> ffi etc), I'm not sure how this is done or if it is possible with PDF
at
> all, but that is of limited value anyway specially for ligatures
that
> can not be split vertically or into equal parts (ligatures carets
might
> provide a clue in the later case, but they are rarely provided by
font
> developers).