\end{filecontents*}
\documentclass[letterpaper]{article}
\usepackage{fontspec}
+\usepackage[default]{fontsetup}
\usepackage[greek.ancient,english]{babel}
\babeltags{grc = greek}
\babelfont{rm}{Old Standard}
\babelfont[greek]{rm}[RawFeature={+ss05;+ss06}]{Old Standard}
-\babelfont{sf}{NewComputerModern Sans}
-\babelfont{tt}{NewComputerModern Mono}
\newlength\defaultparindent
\setlength\defaultparindent{\parindent}
\usepackage[toc]{multitoc}
\edef\pkgver{2.6}
-\edef\pkgdate{2020/12/17}
+\edef\pkgdate{2020/12/18}
\title{\mdseries\tcbox[colframe=black, enhanced, tikznode, drop
lifted shadow, colback=white, boxrule=.25mm]%
{\textsc{Old Standard}\\