I am trying to change the colors in a plot manually but
My code with dummydata:
df2=data.frame(y=runif(10), ontopic=c(F,F,F,F,F,T,T,T,T,T)) plot_right &
Using scale_fill_manual instead of scale_colour_manual should work.
ggplot(df2, aes(y, fill = ontopic, colour= ontopic)) + geom_density(alpha = 0.5) + coord_flip() + theme(legend.position = "none")+ scale_y_continuous(breaks=seq(0, 1, 0.5)) + scale_fill_manual(values=c("#999999", "#E69F00"))