Manual for the tcolorbox package

tcb/colupper=〈color〉
Sets the text 〈color〉 of the upper part.
\begin{tcolorbox}[colupper=red!75!black]
This is a \textbf{tcolorbox}.
\tcblower
This is the lower part.
\end{tcolorbox}
(no default, initially black)
This is a tcolorbox.
This is the lower part.
/tcb/collower=〈color〉
Sets the text 〈color〉 of the lower part.
\begin{tcolorbox}[collower=red!75!black]
This is a \textbf{tcolorbox}.
\tcblower
This is the lower part.
\end{tcolorbox}
(no default, initially black)
This is a tcolorbox.
This is the lower part.
/tcb/coltext=〈color〉
(style, no default, initially black)
Sets the text 〈color〉 of the box. This is an abbreviation for setting colupper and collower
to the same value.
\begin{tcolorbox}[coltext=red!75!black]
This is a \textbf{tcolorbox}.
\tcblower
This is the lower part.
\end{tcolorbox}
This is a tcolorbox.
This is the lower part.
/tcb/coltitle=〈color〉
Sets the title text 〈color〉 of the box.
\begin{tcolorbox}[coltitle=red!75!black,
colbacktitle=black!10!white,title=Test]
This is a \textbf{tcolorbox}.
\end{tcolorbox}
Test
(no default, initially white)
This is a tcolorbox.
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