I am having a difficult time getting rid of individual track labels or turning them white (either will do). I have tried the following based on the manual's instructions, but there is a lot of ambiguity on how to deal with xscale and setTrackXscaleParam. I am not even sure that setTrackStyleParam and setTrackXscaleParam are the appropriate parameters to set. In the manual, pages 34 and 39 reference xscale, but don't show how to use them. Why is there a ylabgp but no xlabgp?

The following do not work or prompt an error:

setTrackXscaleParam(trackList[[1]], xaxis.gp = gpar(col = "white"))
setTrackXscaleParam(trackList[[1]], "color" , "white")
setTrackXscaleParam(trackList[[1]], "color" , gpar(col = "white"))
setTrackStyleParam(trackList[[1]], "draw" , FALSE)
setTrackXscaleParam(trackList[[1]], "draw" , FALSE)
setTrackStyleParam(trackList[[1]], "xscale" , value =  F)
setTrackStyleParam(trackList[[1]], "xscale" , draw = F)