I'm using ggpairs and I need to change the default color schema. Suppose I want to specify that Setosa is blue, Versicolor is green and Virginica is red. Ho can I tell ggpairs that? The entire plot (upper, lower and diag) may reflect this choice. Look at the picture and code below, please. I tried many solutions without success.
ggpairs(iris, mapping = aes(color = Species))