[R] (no subject)

[NATALIA F TCHETCHERINA]

Hello,
I am working with maQualityPlots.
I would like to change colors of graphs of 'Spatial:Rank(M-Raw)' and
'Spatial:Rank(M-Norm)' from blue-yellow to green-red.I think I need to change
col=NULL in :

 maQualityPlots(mrawObj, headerInfo = "", save = TRUE, dev = "png", col=NULL,
badspotfunction=NULL, controlId = c("ID", "Name"), DEBUG = FALSE, ...)
 My question is: Where I can find information about the vector 'col' that would
be helpful to change col=NULL?
or may be I have to change 

 qpImage(nbgraw, xvar = "maM", main = "Spatial: Rank(M-Raw)")?

Sincerely, Natalia.