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How can I change the default colors of the density in gghistogram() in R?

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I want to update the default colors of my ggplot2 plots in R to

seablue <-rgb(0,0.6,0.82)
lightred <-rgb(0.8,0,0)

where seablue should be the color of the first line and lightred should be the color of the second line. Using

update_geom_defaults("line", list(size = 1.75, colour = seablue))

the color of the first line is changed to seablue for autoplot() line graphs.

However, the colors of the density lines in gghistogram(data, add.normal = T, add.kde = T) remain unchanged (first: lightblue and second: orange).

How can I change the default colors of the density in gghistogram() such that the normal density is seablue and the kde density is lightred?

Related to this, how can I change the second default color of the autoplot() line graphs to lightred?

(Note: I dont want to change the colors just for one plot, but for all plots of my file.)


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