This theme is designed to be a foundation from which to build new
themes, and not meant to be used directly.
is a complete theme with only minimal number of elements defined.
It is easier to create new themes by extending this one rather
because those themes define elements deep in the hierarchy.
theme_foundation(base_size = 12, base_family = "")
base font size, given in pts.
base font family
This theme takes
theme_gray() and sets all
fill values to
NULL, except for the top-level
title), which have
colour = "black", and
fill = "white". This leaves the spacing
and-non colour defaults of the default ggplot2 themes in place.