increase legend font size ggplot2

Question

Is there a way to increase the font size in ggplot2? I think I need to specify something like legend.key.width = unit(2, \"line\") in the the

Answer 1

theme(plot.title = element_text(size = 12, face = "bold"),
    legend.title=element_text(size=10), 
    legend.text=element_text(size=9))