hadley/ggplot2 — Issue #335: Alpha value lost with scale_colour_manual
Author: hadley
Created: 2011-12-30 14:00:37+00:00
State: open

```R
dat <- data.frame(x = 1:10,y = 1:10,grp = rep(letters[1:2],length.out
= 10))

ggplot(dat,aes(x = x,y = y)) +
geom_point(aes(colour = grp)) +
scale_colour_manual(values = c('#FF00001A','#0000FF1A'))
```

reported by Joran.