\input regression-test.tex
\documentclass{article}
\usepackage{osgstyler}

\UseOsgStandardBlockEnvironments

\begin{document}
\START
\UseOsgPreset{osl-standard}
\ExplSyntaxOn
\TYPE{standard-color=\OsgActiveColorPalette}
\TYPE{standard-font=\OsgActiveFontPalette}
\ExplSyntaxOff
\UseOsgPreset{osl-modern}
\ExplSyntaxOn
\TYPE{modern-color=\OsgActiveColorPalette}
\TYPE{modern-font=\OsgActiveFontPalette}
\ExplSyntaxOff
\begin{quote}
  \TYPE{quote-body=shown}
\end{quote}
\UseOsgPreset{unknown-preset-xyz}
\ExplSyntaxOn
\TYPE{after-unknown-preset-color=\OsgActiveColorPalette}
\ExplSyntaxOff
\TYPE{done}
\END
\end{document}