theme_moffitt: A Clean Theme with Moffitt Style
In GerkeLab/grkmisc: A package of miscellaneously helpful functions

A clean theme based on hrbrthemes::theme_ispum() that uses Overpass, a free Google Font that resembles Freeway, the (proprietary) font chosen by MCC branding. This theme works best when set globally using ggplot2::theme_set() as it will automatically download and register the correct fonts from Google Font using sysfonts and showtext (if installed) and will change the default ggplot2::geom_text() related fonts as well. For an alternative look that I prefer, use theme_grk(), which simply uses "Fira Sans" as the base font.

theme_moffitt(
  base_family = "Overpass",
  axis_text_family = "Overpass Mono",
  axis_title_family = base_family,
  axis_title_bold = FALSE,
  axis_title_just = "cc",
  axis_title_size = 13,
  subtitle_size = 13,
  default_geom_font = "Fira Sans Condensed",
  default_geom_color = grkmisc::moffitt_colors$blue,
  axis_text_color = "#6e6e6e",
  plot_caption_color = axis_text_color,
  panel_border_color = axis_text_color,
  panel_background_color = "#FFFFFF",
  ...,
  use_showtext = TRUE,
  panel_grid = c("major", "minor", "both", "none")
)

theme_grk(
  base_family = "PT Sans",
  axis_text_family = "PT Mono",
  axis_title_family = base_family,
  axis_title_bold = FALSE,
  axis_title_just = "cc",
  axis_title_size = 13,
  subtitle_size = 13,
  default_geom_font = "PT Sans Narrow",
  default_geom_color = grkmisc::moffitt_colors$blue,
  axis_text_color = "#6e6e6e",
  plot_caption_color = axis_text_color,
  panel_border_color = axis_text_color,
  panel_background_color = "grey96",
  ...,
  use_showtext = TRUE,
  panel_grid = c("major", "minor", "both", "none")
)

`base_family`	base font family and size
`axis_text_family`	The font family for axis ticks text labels. Passed to `family` in `axis.text` in `ggplot2::theme()`.
`axis_title_family`	axis title font family, face and size
`axis_title_bold`	If `TRUE`, the axis title's will be bold.
`axis_title_just`	axis title font justification, one of `[blmcrt]`
`axis_title_size`	axis title font family, face and size
`subtitle_size`	plot subtitle family, face and size
`default_geom_font`	Change the default ggplot2 geom fonts to the specified font. The default is "Fira Sans Condensed", which tends to look good in constrained space.
`default_geom_color`	Changes default colors of bars and points to the value given. Set to `NULL` to avoid changing these colors. Note that these colors are used only when color or fill is not mapped to the data.
`axis_text_color`	Color of axis text
`plot_caption_color`	Color of the plot caption text, or `NULL` to disable
`panel_border_color`	Color of the panel border, or `NULL` to disable
`panel_background_color`	Color of the panel background, or `NULL` to disable
`...`	Arguments passed on to `hrbrthemes::theme_ipsum` `base_size` base font family and size `plot_title_family` plot title family, face, size and margi `plot_title_face` plot title family, face, size and margi `plot_title_size` plot title family, face, size and margi `plot_title_margin` plot title family, face, size and margi `subtitle_family` plot subtitle family, face and size `subtitle_face` plot subtitle family, face and size `subtitle_margin` plot subtitle margin bottom (single numeric value) `strip_text_family` facet label font family, face and size `strip_text_face` facet label font family, face and size `strip_text_size` facet label font family, face and size `caption_family` plot caption family, face, size and margin `caption_face` plot caption family, face, size and margin `caption_size` plot caption family, face, size and margin `caption_margin` plot caption family, face, size and margin `axis_text_size` font size of axis text `axis_title_face` axis title font family, face and size `plot_margin` plot margin (specify with `ggplot2::margin()`) `grid_col` grid & axis colors; both default to `#cccccc` `axis_col` grid & axis colors; both default to `#cccccc` `grid` panel grid (`TRUE`, `FALSE`, or a combination of `X`, `x`, `Y`, `y`) `axis` add x or y axes? `TRUE`, `FALSE`, "`xy`" `ticks` ticks if `TRUE` add ticks
`use_showtext`	Should showtext and sysfonts be used to register font families from Google? Default is `TRUE`.
`panel_grid`	One of "major", "minor", "both", or "none"

## Not run: 
theme_set(theme_moffitt())
theme_set(theme_grk())
# Set base theme without changing geom defaults
theme_set(theme_moffitt(default_geom_font = NULL, default_geom_color = NULL))

## End(Not run)

library(ggplot2)
g <- ggplot(mtcars, aes(mpg, wt)) +
  geom_point() +
  geom_text(aes(label = cyl), vjust = 0.5, hjust = 1.65) +
  labs(x = "Fuel efficiency (mpg)",
       y = "Weight (tons)",
       title = "Seminal ggplot2 scatterplot example",
       subtitle = "A plot that is only useful for demonstration purposes",
       caption = "Brought to you by the letter 'g'")
g + theme_moffitt()
g + theme_moffitt(default_geom_color = moffitt_colors$green)
g + theme_grk()