A helper function to set global options — hl_opt

Any global options set in this manner can be overridden by setting them as function arguments to the primt() methods defined for emphatic matrices and data.frames.

hl_opt_global(
  na,
  dark_mode,
  full_colour,
  text_mode,
  text_contrast,
  underline_header
)

Arguments

na

Character string to display for NA values. Default 'NA'

dark_mode

Output terminal is in 'dark mode'? default: TRUE means that the terminal display is light coloured text on a dark background. If your terminal displays dark text on a light background, set dark_mode = FALSE

full_colour

Use 24bit ANSI escape codes? default: FALSE - use 8bit colour. Note: RStudio only supports 8 bit ANSI output (24bit ANSI is rendered invisibly in Rstudio). For 24bit colour output, try R in the terminal e.g. 'iTerm' on OSX.

text_mode

How to handle textif no text colour has been explicitly specified by the user.

contrast: (default) automatically select a contrasting colour for enhanced readability.
asis: render text in the default text colour for the output device, unless the user has already specified a text colour at this location
remove: remove all text without a user-defined colour

text_contrast

When text_mode='contrast' this numeric value in range [0, 1] adjusts the visibility. Default: 1 (high contrast)

underline_header

Draw an underline separating the column header from the data? Default: TRUE