bq.tex

\documentclass[12pt]{scrartcl}
\usepackage{letltxmacro}
%\usepackage{quoting}
%\usepackage{tikz}
\usepackage[most]{tcolorbox}

\begin{document}
% Create new version of boxed quoting environment called
% 'bquoting'. Leave the original modified version of 'quoting' for
% backwards compatibility purposes. First, make a copy of the quoting
% environment called bquoting.

\LetLtxMacro\bquoting\quoting
\LetLtxMacro\endbquoting\endquoting

% \NewCommandCopy\bquoting\quoting
% \NewCommandCopy\endbquoting\endquoting

% Then modify it with \tcolorboxenvironment

\tcolorboxenvironment{bquoting}{
  beforeafter skip=\baselineskip, boxrule=2pt, sharp corners, breakable, skin=enhanced, colback=white}

% \newtcolorbox{bquoting}{ beforeafter skip=\baselineskip, boxrule=2pt,
%   sharp corners, breakable, skin=enhanced, colback=white}

% \LetLtxMacro\bquoting\quoting
% \LetLtxMacro\endbquoting\endquoting

% \tcolorboxenvironment{bquoting}{
%   beforeafter skip=\baselineskip, boxrule=2pt, sharp corners, breakable, skin=enhanced, colback=white}

% \newtcolorbox{bquoting}{ beforeafter skip=\baselineskip, boxrule=2pt,
%   sharp corners, breakable, skin=enhanced, colback=white}

% \begin{bquoting}
%   FOO
% \end{bquoting}

% \begin{quoting}
%   FOO
% \end{quoting}

\end{document}

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