% !TeX root = tcolorbox.tex
% include file (style) of tcolorbox.tex (manual of the LaTeX package tcolorbox)

\begin{tcbverbatimwrite}{\jobname_preamble_A.tex}
\newtcolorbox[auto counter,number within=section]{pabox}[2][]{%
  colback=red!5!white,colframe=red!75!black,fonttitle=\bfseries,
  title=Examp.~\thetcbcounter: #2,#1}
\end{tcbverbatimwrite}
\input{\jobname_preamble_A.tex}


\begin{tcbverbatimwrite}{\jobname_preamble_B.tex}
% counter from previous example
\newtcbox[use counter from=pabox]{\pbbox}[2][]{%
  colback=red!5!white,colframe=red!75!black,fonttitle=\bfseries,
  title=(\thetcbcounter) #2,#1}
\end{tcbverbatimwrite}
\input{\jobname_preamble_B.tex}


\begin{tcbverbatimwrite}{\jobname_preamble_C.tex}
\newtcblisting[auto counter]{mycbox}[1]{%
  colback=red!5!white,colframe=red!75!black,fonttitle=\bfseries,
  title=Listing \thetcbcounter: #1}
\end{tcbverbatimwrite}
\input{\jobname_preamble_C.tex}


\begin{tcbverbatimwrite}{\jobname_preamble_D.tex}
\tcbset{
  texexp/.style={colframe=red!50!yellow!50!black, colback=red!50!yellow!5!white,
      coltitle=red!50!yellow!3!white,
      fonttitle=\small\sffamily\bfseries, fontupper=\small, fontlower=\small},
  example/.style 2 args={texexp,
      title={Example \thetcbcounter: #1},label={#2}},
}


\newtcblisting{texexp}[1]{texexp,#1}
\newtcblisting[auto counter,number within=section]{texexptitled}[3][]{%
  example={#2}{#3},#1}
\newtcolorbox[use counter from=texexptitled]{texexptitledspec}[3][]{%
  example={#2}{#3},#1}
\end{tcbverbatimwrite}
\input{\jobname_preamble_D.tex}


\begin{tcbverbatimwrite}{\jobname_preamble_E.tex}
\newtcolorbox[auto counter,number within=section,list inside=exam]{texercise}[2][]{%
  texercisestyle,
  listing file={solutions/texercise\thetcbcounter.tex},
  label={exe:#2},
  record={\string\processsol{solutions/texercise\thetcbcounter.tex}{#2}},
  title={Exercise \thetcbcounter\hfill\mdseries Solution on page \pageref{sol:#2}},
  list text={Exercise with solution on page \pageref{sol:#2}},#1}
\end{tcbverbatimwrite}
\input{\jobname_preamble_E.tex}


\begin{tcbverbatimwrite}{\jobname_preamble_F.tex}
\newtcbtheorem[number within=section]{mytheo}{My Theorem}%
  {colback=green!5,colframe=green!35!black,fonttitle=\bfseries}{th}
\end{tcbverbatimwrite}
\input{\jobname_preamble_F.tex}


\begin{tcbverbatimwrite}{\jobname_preamble_G.tex}
% \usepackage{cleveref}
\tcbset{
  defstyle/.style={fonttitle=\bfseries\upshape, fontupper=\slshape,
              arc=0mm, colback=blue!5!white,colframe=blue!75!black},
  theostyle/.style={fonttitle=\bfseries\upshape, fontupper=\slshape,
               colback=red!10!white,colframe=red!75!black},
}
\newtcbtheorem[number within=subsection,crefname={definition}{definitions}]%
  {Definition}{Definition}{defstyle}{def}
\newtcbtheorem[use counter from=Definition,crefname={theorem}{theorems}]%
  {Theorem}{Theorem}{theostyle}{theo}
\newtcbtheorem[use counter from=Definition,crefname={corollary}{corollaries}]%
  {Corollary}{Corollary}{theostyle}{cor}
\end{tcbverbatimwrite}
\input{\jobname_preamble_G.tex}


\begin{tcbverbatimwrite}{\jobname_preamble_H.tex}
\newtcolorbox[auto counter,number within=section,
  number freestyle={(Q/\noexpand\thesection/\noexpand\Alph{\tcbcounter})},
  ]{phbox}[2][]{%
  colback=yellow!15!white,colframe=blue!75!black,fonttitle=\bfseries,
  title=Question~\thetcbcounter: #2,#1}
\end{tcbverbatimwrite}
\input{\jobname_preamble_H.tex}


\begin{tcbverbatimwrite}{\jobname_preamble_I.tex}
% \usepackage{cleveref}
\newtcolorbox[auto counter,number within=section,
  crefname={bluebox}{blueboxes}]%
  {mybluebox}[2][]{colback=blue!5!white,colframe=blue!75!black,fonttitle=\bfseries,
     title=Bluebox \thetcbcounter: #2,#1}
\end{tcbverbatimwrite}
\input{\jobname_preamble_I.tex}


\begin{tcbverbatimwrite}{\jobname_preamble_J.tex}
\newtcbtheorem[use counter from=mytheo]{theorem}{Theorem}{%
  fonttitle=\bfseries\upshape,fontupper=\itshape,
  colframe=green!50!black,colback=green!10!white,
  colbacktitle=green!20!white,coltitle=blue!75!black}{theo}
\end{tcbverbatimwrite}
\input{\jobname_preamble_J.tex}


\begin{tcbverbatimwrite}{\jobname_preamble_K.tex}
\usepackage{amsthm}

\theoremstyle{plain}%    from `amsthm'
\newtheorem{lem}{Lemma}% from `amsthm'

\tcolorboxenvironment{lem}{
  enhanced jigsaw,colframe=cyan,interior hidden,
  breakable,before skip=10pt,after skip=10pt }

\tcolorboxenvironment{proof}{% `proof' from `amsthm'
  blanker,breakable,left=5mm,
  before skip=10pt,after skip=10pt,
  borderline west={1mm}{0pt}{red}}
\end{tcbverbatimwrite}
\input{\jobname_preamble_K.tex}


\begin{tcbverbatimwrite}{\jobname_preamble_L.tex}
% \tcbuselibrary{skins,xparse}

\NewTColorBox[auto counter,number within=section]{exercise}{+!O{}}{%
  enhanced,colframe=green!20!black,colback=yellow!10!white,coltitle=green!40!black,
  fonttitle=\bfseries,
  underlay={\begin{tcbclipinterior}
    \shade[inner color=green!80!yellow,outer color=yellow!10!white]
      (interior.north west) circle (2cm);
    \draw[help lines,step=5mm,yellow!80!black,shift={(interior.north west)}]
      (interior.south west) grid (interior.north east);
    \end{tcbclipinterior}},
  title={Exercise~\thetcbcounter:},
  label={exercise@\thetcbcounter},
  attach title to upper=\quad,
  after upper={\par\hfill\textcolor{green!40!black}%
    {\itshape Solution on page~\pageref{solution@\thetcbcounter}}},
  lowerbox=ignored,
  savelowerto=solutions/exercise-\thetcbcounter.tex,
  record={\string\solution{\thetcbcounter}{solutions/exercise-\thetcbcounter.tex}},
  #1
}

\NewTotalTColorBox{\solution}{mm}{%
  enhanced,colframe=red!20!black,colback=yellow!10!white,coltitle=red!40!black,
  fonttitle=\bfseries,
  underlay={\begin{tcbclipinterior}
    \shade[inner color=red!50!yellow,outer color=yellow!10!white]
      (interior.north west) circle (2cm);
    \draw[help lines,step=5mm,yellow!80!black,shift={(interior.north west)}]
      (interior.south west) grid (interior.north east);
    \end{tcbclipinterior}},
  title={Solution of Exercise~\ref{exercise@#1} on page~\pageref{exercise@#1}:},
  phantomlabel={solution@#1},
  attach title to upper=\par,
}{\input{#2}}

\tcbset{no solution/.style={no recording,after upper=}}
\end{tcbverbatimwrite}
\input{\jobname_preamble_L.tex}


\begin{tcbverbatimwrite}{\jobname_preamble_M.tex}
\newtcblisting{myownlisting}[2][]{
  enhanced,colback=red!5!white,colframe=red!75!black,fonttitle=\bfseries,
  colbacktitle=red!50!yellow,before skip=6pt,after skip=6pt,
  title={#2},#1}

\newtcbexternalizetcolorbox{exmyownlisting}{myownlisting}%
  {minipage,environment with percent=false}%
  {before skip=6pt,after skip=6pt}% same values as for mylisting
\end{tcbverbatimwrite}
\input{\jobname_preamble_M.tex}
