On Wed, 3 Aug 2011 at 17:29:48 -0300, Youssef Cherem wrote: > > I'm not familiar with Xetex, only xelatex, but shouldn't you put the > color name or code where the example reads "color"? Right, but that's already written in transforms.tex. More precisely, the command is this: \special{x:backgroundcolor=FFFFDD}