Here is an example of how you can formulate queries related to
theme-related colors using gg_-commands:
ggplot(data=iris, mapping=aes(x=Sepal.Length, y=Petal.Length, color=Species))+ggtitle("Iris")+geom_point()+gg_("paint the title red")+gg_("paint the x-axis label in green")+gg_("also, I want a purple y-axis label")
Valid Colors
The ggx package matches valid base R colors. The list of
all valid colors, such as those: