theme_darker.R

# An attempt at an all dark theme.

theme_darker <- function (base_size = 11,
                          base_family = "InputMono")
{
  # Colors
  vividchalk_cyan <- "#339999"
  vividchalk_magenta <- "#9933CC"
  vividchalk_yellow <- "#FFCC00"
  vividchalk_green <- "#66FF00"
  # TODO: orange
  vividchalk_brown <- "#FF6600"
  vividchalk_lightcyan <- "#AAFFFF"
  vividchalk_grey <- "#AAAA77"
  vividchalk_darkgreen <- "#33AA00"
  vividchalk_darkcyan <- "#44B4CC"
  vividchalk_altyellow <- "#DDE93D"

  half_line <- base_size / 2
  background_color <- "#333333"
  theme(
    line = element_line(
      colour = "black",
      size = 0.5,
      linetype = 1,
      lineend = "butt"
    ),
    rect = element_rect(
      fill = "white",
      colour = "black",
      size = 0.5,
      linetype = 1
    ),
    text = element_text(
      family = base_family,
      face = "plain",
      colour = "white",
      size = base_size,
      lineheight = 0.9,
      hjust = 0,
      # Align left
      vjust = 0.5,
      angle = 0,
      margin = margin(),
      debug = FALSE
    ),

    axis.line = element_blank(),
    axis.text = element_text(size = rel(0.8), colour = "white"),
    axis.text.x = element_text(
      margin = margin(t = 0.8 * half_line / 2),
      vjust = 1,
      hjust = 0.5,
      color = "grey50"
    ),
    axis.text.y = element_text(
      margin = margin(r = 0.8 * half_line / 2),
      hjust = 1,
      color = "grey50"
    ),
    axis.ticks = element_line(colour = "grey20"),
    axis.ticks.length = unit(half_line / 2, "pt"),
    axis.title.x = element_text(margin = margin(
      t = 0.8 * half_line,
      b = 0.8 * half_line / 2
    )),
    axis.title.y = element_text(
      angle = 90,
      margin = margin(r = 0.8 * half_line,
                      l = 0.8 * half_line / 2)
    ),

    legend.background = element_rect(colour = background_color, fill = background_color),
    legend.spacing = unit(0.2, "cm"),
    legend.key = element_rect(fill = "grey95", colour = "white"),
    legend.key.size = unit(1.2, "lines"),
    legend.key.height = NULL,
    legend.key.width = NULL,
    legend.text = element_text(size = rel(0.8)),
    legend.text.align = NULL,
    legend.title = element_text(hjust = 0),
    legend.title.align = NULL,
    legend.position = "right",
    legend.direction = NULL,
    legend.justification = "center",
    legend.box = NULL,

    panel.background = element_rect(colour = background_color, fill = background_color),
    panel.border = element_blank(),
    panel.grid.major = element_line(colour = "grey30"),
    panel.grid.minor = element_line(colour = "grey20", size = 0.25),
    panel.spacing = unit(half_line, "pt"),
    panel.margin.x = NULL,
    panel.margin.y = NULL,
    panel.ontop = FALSE,

    strip.background = element_blank(),
    strip.text = element_text(colour = "white", size = rel(0.8)),
    strip.text.x = element_text(margin = margin(t = half_line,
                                                b = half_line)),
    strip.text.y = element_text(
      angle = -90,
      margin = margin(l = half_line,
                      r = half_line)
    ),
    strip.switch.pad.grid = unit(0.1, "cm"),
    strip.switch.pad.wrap = unit(0.1, "cm"),

    plot.background = element_rect(colour = background_color, fill = background_color),
    plot.title = element_text(
      size = rel(1.2),
      margin = margin(b = half_line * 1.2),
      face = "bold"
    ),
    plot.title.position = "plot",
    plot.margin = margin(half_line, half_line, half_line, half_line * 1.5),
    complete = TRUE
  )
  # +
  #   scale_fill_manual(
  #     values = c(
  #       vividchalk_cyan,
  #       vividchalk_yellow,
  #       vividchalk_green,
  #       # TODO: orange
  #       vividchalk_brown,
  #       vividchalk_lightcyan,
  #       vividchalk_magenta,
  #       vividchalk_grey,
  #       vividchalk_darkgreen,
  #       vividchalk_darkcyan,
  #       vividchalk_altyellow
  #     )
  #   )
}