change the background color of grid.arrange output

Question

I am using grid.arrange from gridExtra package to put two graphs on one page and save it to a png file. I like to change the background colour of t

Answer 1

Try setting the bg = argument to png()

library(gridExtra)
library(lattice)

png(bg = "wheat1")
    grid.arrange(xyplot(1:10~1:10, pch=16), xyplot(1:4~1:4, pch=16))
dev.off()