slide plots an empty slide (or frame)
as a colored rectangle.
The color to fill the slide with (i.e., its background color).
Default: col = NA (i.e., system default for transparency).
The x- and y-dimensions of the slide.
Default: dim = c(4/3, 1) (i.e., unit height, 4/3 wider than high).
The color of the slide's border.
Setting border = NA hides border.
Default: border = grey(.33, 1).
The line width of the slide's border.
Setting lwd = 0 or lwd = NA removes border.
Default: lwd = 1.5.
heading, line, or mark to add text to a slide;
xbox to plot a box.
Other plot functions:
theme_grau(),
theme_unikn(),
xbox()