A function that can be used to color (style) strings.
Arguments
...
The style to create. See details and examples below.
bg
Whether the color applies to the background.
grey
Whether to specifically create a grey color.
This flag is included, because ANSI 256 has a finer color scale
for greys, then the usual 0:5 scale for red, green and blue components.
It is only used for RGB color specifications (either numerically
or via a hexadecimal string), and it is ignored on eight color ANSI
terminals.
colors
Number of colors, detected automatically
by default.
Details
The ... style argument can be any of the following:
A cli ANSI style function of class cli_ansi_style. This is returned
as is, without looking at the other arguments.
A 6- or 8-digit hexadecimal color string, e.g. #ff0000 means
red. Transparency (alpha channel) values are ignored.
A one-column matrix with three rows for the red, green
and blue channels, as returned by grDevices::col2rgb().
make_ansi_style() detects the number of colors to use
automatically (this can be overridden using the colors
argument). If the number of colors is less than 256 (detected or given),
then it falls back to the color in the ANSI eight color mode that
is closest to the specified (RGB or R) color.
See Also
Other ANSI styling:
ansi-styles,
combine_ansi_styles(),
num_ansi_colors()