kableExtra uses the built-in bootstrap themes by default in
kable_styling(). Alternatively, you can use a customized table themes for
your table. This lightable table style sheet comes with three formats,
namely lightable-minimal, lightable-classic, lightable-material and
lightable-material-dark with hover and striped options.
kable_classic(
  kable_input,
  lightable_options = "basic",
  html_font = "\"Arial Narrow\", \"Source Sans Pro\", sans-serif",
  ...
)kable_classic_2(
  kable_input,
  lightable_options = "basic",
  html_font = "\"Arial Narrow\", \"Source Sans Pro\", sans-serif",
  ...
)
kable_minimal(
  kable_input,
  lightable_options = "basic",
  html_font = "\"Trebuchet MS\", verdana, sans-serif",
  ...
)
kable_material(
  kable_input,
  lightable_options = "basic",
  html_font = "\"Source Sans Pro\", helvetica, sans-serif",
  ...
)
kable_material_dark(
  kable_input,
  lightable_options = "basic",
  html_font = "\"Source Sans Pro\", helvetica, sans-serif",
  ...
)
kable_paper(
  kable_input,
  lightable_options = "basic",
  html_font = "\"Arial Narrow\", arial, helvetica, sans-serif",
  ...
)
A HTML kable object.
Options to customize lightable. Similar with
bootstrap_options in kable_styling. Choices include basic, striped
and hover.
A string for HTML css font. For example,
html_font = '"Arial Narrow", arial, helvetica, sans-serif'.
Everything else you need to specify in kable_styling.