theme_metan(): Theme with a gray background and major grids.
theme_metan_minimal(): A minimalistic theme with half-open frame, white
background, and no grid. For more details see theme.
transparent_color(): A helper function to return a transparent color
with Hex value of "#000000FF"
alpha_color(): Return a semi-transparent color based on a color name
and an alpha value. For more details see colors.
theme_metan(grid = "none", col.grid = "white", color.background = "gray95")theme_metan_minimal()
transparent_color()
alpha_color(color, alpha = 50)
Control the grid lines in plot. Defaults to "both" (x and
y major grids). Allows also grid = "x" for grids in x axis only,
grid = "y" for grid in y axis only, or grid = "none" for no
grids.
The color for the grid lines
The color for the panel background.
A color name.
An alpha value for transparency (0 < alpha < 1).