I've released highlight 0.2-2 to CRAN. This release adds the possibility to control the font size of the latex code generated by sweave (when using the driver that is provided by highlight)

For example, this C++ code (using Rcpp) will be highlighted in tiny size.

double square( double x){
  return x*x ;

SEXP foo( SEXP xx ){
  NumericVector x(xx) ;
  return sapply( x, square ) ;

This is something we had to do manually when preparing the slides for useR! 2010