
Default color scale
default_color_scale.RdDecide whether to use scale_X_gradientn() or scale_X_manual(), and decides X.
Given an object, returns the ggplot scale function that fits based on the geom and the input plotting variable

default_color_scale.RdDecide whether to use scale_X_gradientn() or scale_X_manual(), and decides X.
Given an object, returns the ggplot scale function that fits based on the geom and the input plotting variable