[XeTeX] experimental new xetex version - with margin-kerning support

[David J. Perry]

Jonathan,

This is great news--thank you!  There is also an OpenType feature called 
Optical Bounds that is designed to do exactly this.  My understanding is 
that very few, if any, page layout programs support this feature.  Maybe 
XeTeX should be cutting-edge in this regard also?  FontForge does allow the 
creation of fonts with this feature, and it would be easier for users to 
take values from a table in the font than having to specify them 
individually.

Best wishes,
David