[XeTeX] Color Hebrew Vowel Points

[Joshua Grauman]

Hello,

I've been trying to create some Hebrew charts (using SIL's Ezra 2.5 Hebrew 
Unicode font) and I'm having difficulty coloring the vowel points a 
different color than the consonants they are on. If I color them different 
colors, the vowel points are no longer positioned correctly (they move to 
the left side of the consonant). What is interesting is that the exact 
same behavior is displayed in OpenOffice 2.2.0, Qt 4.3.0 QTextEdit, and 
XeTeX 0.996 (I'm using a texlive 2007 install on Linux). I had just wanted 
to create a few charts in OpenOffice, but when that didn't work was trying 
to find any way to color vowels and their consonants differently. Is this 
even possible with Unicode fonts?

Josh