Returns the CTAN package names that arframe's PDF backend requires. These
packages are loaded in the LaTeX preamble generated by fr_render() when
producing .pdf or .tex output.
Details
Most packages ship with a full TeX Live installation, but tabularray is
often missing from minimal distributions like tinytex. Use
fr_install_latex_deps() to install everything at once.
See also
fr_install_latex_deps() to install these packages,
fr_render() for PDF output.