Any idea why this happens? Reversing the order of the legend changes it quite substantially.
ggplot(mtcars, aes(x = disp, y = mpg, colour = disp, size = disp)) +
geom_point() +
scale_colour_distiller(palette = "PuOr") +
guides(size = FALSE)
ggplot(mtcars, aes(x = disp, y = mpg, colour = disp, size = disp)) +
geom_point() +
scale_colour_distiller(palette = "PuOr") +
guides(size = FALSE, colour = guide_legend(reverse = TRUE))

