feat: Use ggplot2::fill_alpha() for adjusting fill alphas
#327
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# Lets make some data
circles <- data.frame(
x0 = rep(1:3, 3),
y0 = rep(1:3, each = 3),
r = seq(0.1, 1, length.out = 9)
)
# Behold some circles
ggplot() +
geom_circle(aes(x0 = x0, y0 = y0, r = r), fill=grid::radialGradient(rainbow(9)), data = circles)
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fill_alpha()was introduced.fill = alpha(fill, alpha)withfill = fill_alpha(fill, alpha).closes #323