\input regression-test.tex
\documentclass{article}
\usepackage{osglecture-modes}
\usepackage{osgstyler}
\usepackage{semcat}
\FinalizeLectureModes

\extractcolorspec{\OsgColorSeriesColorName{semcat-categories}{1}}\TestPalettePrimary
\extractcolorspec{\OsgColorSeriesColorName{semcat-categories}{2}}\TestPaletteSecondary
\extractcolorspec{\OsgColorSeriesColorName{semcat-categories}{3}}\TestPaletteAccent

\SemCatDeclareSymbol{plain}{PLAINMARK}
\SemCatDefine{E}[title={Plain symbol}, symbol=plain]
\SemCatDefine{F}[title={No symbol}]

\DeclareOsgDecoration{semcat-test-affix}{
  margin = { color = accent },
  affix  = { symbol = plain, color = alert }
}
\SemCatDefine{G}[title={Decoration affix}, decoration=semcat-test-affix]

\DeclareOsgDecoration{semcat-test-affix-content}{
  enclosure = { border-color = primary },
  affix     = { content = DIRECTMARK }
}
\SemCatDefine{H}[title={Decoration affix content}, decoration=semcat-test-affix-content]

\SemCatDeclareSymbol{plain-slides}{SLIDESMARK}
\SemCatDefine{I}[
  title={Mode-varied symbol}, symbol=plain,
  variants={ slides = {symbol=plain-slides} }
]

\begin{document}
\START

\TYPE{palette-primary=\TestPalettePrimary}
\TYPE{palette-secondary=\TestPaletteSecondary}
\TYPE{palette-accent=\TestPaletteAccent}

\TYPE{symbol-plain=\SemCatSymbol{plain}}

\begin{SemCatMark}[category=E]
category with a plain symbol key and no decoration.
\end{SemCatMark}
\TYPE{after-plain-symbol=reached}

\begin{SemCatMark}[category=F]
category without any symbol.
\end{SemCatMark}
\TYPE{after-no-symbol=reached}

\begin{SemCatMark}[category=G]
category whose decoration provides an affix symbol and its own color,
repeated text repeated text repeated text repeated text.
\end{SemCatMark}
\TYPE{after-decoration-affix-symbol=reached}

\begin{SemCatMark}[category=H]
category whose decoration provides literal affix content instead of
a named symbol.
\end{SemCatMark}
\TYPE{after-decoration-affix-content=reached}

\begin{SemCatMark}[category=I]
active mode is article, so this keeps the default plain symbol; the
slides variant, overriding it to plain-slides, is not active.
\end{SemCatMark}
\TYPE{after-variant-symbol=reached}

\TYPE{done=yes}
\END
\end{document}