[XeTeX] additional beginL endL nodes in math

[Philip Taylor]

David Carlisle wrote:

> possibly but in the interests of keeping divergence of tex-related
> engines to a minimum
> as a first approach (if different approaches were being considered)
> I'd look to what luatex
> is doing, where colour and directionality can be specified without
> introducing new nodes
> colour being an attribute of the font for example.

Colour is already an attribute of the font in XeTeX, is it not ?
The syntax certainly suggests that it is :

	\font \thisfont = "Tw Cen MT Condensed":color=968A4D scaled 955

for example.

** Phil.