[R] setting par() for individual leaves/twigs/labels in plot.dendrogram

[Walton A. Green]

R-helpers,

I seem to remember a discussion in r-help a while ago about plotting the 
individual leaves of a dendrogram in different colors, but I can't 
find the discussion in the archives or figure out how to do it. For my 
purposes, it doesn't really matter whether its the terminal points 
(leaves) or the terminal edges (twigs) or, for that matter, the labels 
that can be colored, but I would like to do the equivalent in 
plot.dendrogram of the bivariate:

plot(1:10, col = c(1,1,1,1,1,2,2,2,2,3))

but with the colors applied to the leaves (or twigs or leaf labels). The 
edgePar, nodePar, label, and col arguments don't seem to do it. Am I 
missing something in the documentation, or is there a function in a 
package that I don't know about? Or a workaround? Or is this just not 
implemented?

Walton Green