Hi list,
Does any one know how I can make the red colour transparant?

#########################
par()
#Set up blank plot to remove plot border type lty="n"
xvalue1<- c(1,2,2,1)
xvalue2<- c(1,3,3,1)
yvalue1<- c(0,0,22,22)
yvalue2<- c(0,0,44,44)
plot(c(min(xvalue2),max(xvalue2)),c(min(yvalue2),max(yvalue2)),type="n",xaxt="n",yaxt="n",xlab="",ylab="Loss
in Łm",yaxs="i",xaxs="r")
polygon(xvalue2,yvalue2,col="#A8B50A",border="#A8B50A")
polygon(xvalue1,yvalue1,col="#9E4770",border="#9E4770")
#########################



regards,
Alireza

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