% \RenewExpandableDocumentCommand\qedsymbol{}{\ensuremath{\text{\textit{O.}}~\epsilon.~\delta.}} \RenewExpandableDocumentCommand\qedsymbol{}{\dots} \theoremstyle{definition} \declaretheoremstyle[ headfont=\bfseries\sffamily\color{NavyBlue!80}, bodyfont=\normalfont, headpunct={:\\}, qed=\qedsymbol, mdframed={ linewidth=2pt, rightline=false, topline=false, bottomline=false, linecolor=NavyBlue, backgroundcolor=NavyBlue!5, }, ]{thmexample} \declaretheorem[numbered=no, style=thmexample,name=Beispiel]{eg} \declaretheoremstyle[ headfont=\bfseries\sffamily\color{RawSienna!80}, bodyfont=\normalfont, headpunct={:\\}, qed=\qedsymbol, mdframed={ linewidth=2pt, rightline=false, topline=false, bottomline=false, linecolor=RawSienna, backgroundcolor=RawSienna!5, }, ]{thmexercise} \declaretheorem[numbered=no, style=thmexercise, name=Aufgabe]{ex} \declaretheoremstyle[ headfont=\bfseries\sffamily\color{ForestGreen!80}, bodyfont=\normalfont, headpunct={:\\}, qed=\qedsymbol, mdframed={ linewidth=2pt, rightline=false, topline=false, bottomline=false, linecolor=ForestGreen, backgroundcolor=ForestGreen!5, }, ]{thmdef} \declaretheorem[numbered=yes, style=thmdef, name=Definition]{definition} \declaretheoremstyle[ headfont=\bfseries\sffamily\color{RawSienna!70!black}, bodyfont=\normalfont, headpunct={:\\}, qed=\qedsymbol, mdframed={ linewidth=2pt, leftline=false, rightline=true, topline=false, bottomline=false, linecolor=RawSienna, backgroundcolor=Red!5, } ]{thmtheorem} \declaretheorem[numbered=yes, style=thmtheorem, name=Satz]{theorem} \declaretheoremstyle[ headfont=\bfseries\sffamily\color{Violet!80}, bodyfont=\normalfont, headpunct={:\\}, notebraces={f\"ur }{}, qed=\qedsymbol, mdframed={ linewidth=2pt, rightline=false, topline=false, bottomline=false, linecolor=Violet, backgroundcolor=Violet!5, }, ]{thmsolution} \makeatletter \@ifclasswith{report}{nosolutions} {% \NewEnviron{solution}[1][]{Eine L\"osung mit dem Name ("L\"osung für #1") wurde ausgeblendet.\ \\ \par} \newcommand\hdsolution[1]{L\"osung ausgeblendet} }{% \declaretheorem[numbered=no, style=thmsolution, name=L\"osung]{replacementSolution} \NewEnviron{solution}[1][]{ \vspace{-1em} \begin{replacementSolution}[#1] \ \BODY \end{replacementSolution} } \newcommand\hdsolution[1]{#1} } \makeatother