A numeric value or vector indicating which row(s) to be selected. You don't
need to count in header rows or group labeling rows.
bold
A T/F value to control whether the text of the selected row
need to be bolded.
italic
A T/F value to control whether the text of the selected row
need to be emphasized.
monospace
A T/F value to control whether the text of the selected column
need to be monospaced (verbatim)
color
A character string for row text color. For example, "red" or
"#BBBBBB".
background
A character string for row background color. Here please
pay attention to the differences in color codes between HTML and LaTeX.
align
A character string for cell alignment. For HTML, possible values could
be l, c, r plus left, center, right, justify, initial and inherit
while for LaTeX, you can only choose from l, c & r.
font_size
A numeric input for font size. For HTML, you can also use
options including xx-small, x-small, small, medium, large,
x-large, xx-large, smaller, larger, initial and inherit.