Modify colour transparency
Vectorised in both colour and alpha.
alpha(colour, alpha = NA)
colour |
colour |
alpha |
new alpha level in [0,1]. If alpha is |
alpha("red", 0.1)
alpha(colours(), 0.5)
alpha("red", seq(0, 1, length.out = 10))
alpha(c("first" = "gold", "second" = "lightgray", "third" = "#cd7f32"), .5)Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.