Make colours transparent

make_transparent(col, opacity = 0.5)

Arguments

col	Vector of colours
opacity	Vector of opacities

Examples

make_transparent("red", seq(0, 1, length.out=6))
#> [1] "#FF000000" "#FF000033" "#FF000066" "#FF000099" "#FF0000CC" "#FF0000FF"
make_transparent(c("red", "blue"), .5)
#> [1] "#FF000080" "#0000FF80"