[Rd] alpha transparency doesn't work for lines when xpd=TRUE

[Jiaxuan Chen]

Dear R-devel,

I think I've found a bug - the alpha transparency doesn't work when plotting lines with xpd = TRUE.

#works
plot(1:20, col="#1874CD", xpd=T, type="l")

#works
plot(1:20, col="#1874CD50", xpd=F, type="l")

#doesn't work
plot(1:20, col="#1874CD50", xpd=T, type="l")

Thank you.

Jim


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