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I would like to clone this box used on the tcolorbox manual, but I couldn't find the configuration in the manual.

Tcolorbox tip

Can you help me?

cgnieder
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Rafael Corsi Ferrao
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  • It's in the documentation source only. Look for marker -- I explicitly asked the package author however, for permission to use the code! –  May 02 '16 at 12:14
  • You're more likely to get a helpful answer by supplying some initial code-frame and showing the work you already put into it. – sheß May 02 '16 at 12:18

1 Answers1

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The code box is called marker and can be found in tcolorbox.doc.s_main.sty, i.e. the documentation source of tcolorbox manual.

The marker environment is made with \newtcolorbox and has an optional argument to allow further customization.

The corner is made with some underlay using TikZ.

Side note: I am using the marker environment in the documentation of personal packages after I have asked Thomas F. Sturm for permission. I think this will be granted to everyone given that there is some remark about Thomas' contribution.

\documentclass{article}

\usepackage[most]{tcolorbox}


\newtcolorbox{marker}[1][]{enhanced,
  before skip=2mm,after skip=3mm,
  boxrule=0.4pt,left=5mm,right=2mm,top=1mm,bottom=1mm,
  colback=yellow!50,
  colframe=yellow!20!black,
  sharp corners,rounded corners=southeast,arc is angular,arc=3mm,
  underlay={%
    \path[fill=tcbcolback!80!black] ([yshift=3mm]interior.south east)--++(-0.4,-0.1)--++(0.1,-0.2);
    \path[draw=tcbcolframe,shorten <=-0.05mm,shorten >=-0.05mm] ([yshift=3mm]interior.south east)--++(-0.4,-0.1)--++(0.1,-0.2);
    \path[fill=yellow!50!black,draw=none] (interior.south west) rectangle node[white]{\Huge\bfseries !} ([xshift=4mm]interior.north west);
    },
  drop fuzzy shadow,#1}


\begin{document}
\begin{marker}
Foo
\end{marker}
\end{document}

enter image description here

muzimuzhi Z
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    For readers in 2021 or later: 1) Please go to the source of tcolorbox.doc.s_main.sty and search for marker to get the latest definition. 2) In the doc for tcolorbox v4.50, the first two options before skip=2mm,after skip=3mm has been replaced with before skip balanced=2mm,after skip balanced=3mm, which were introduced in v4.40. 3) Also for v4.50, my test shows the minimal dependence is \tcbuselibrary{skins}. – muzimuzhi Z Nov 09 '21 at 05:57
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    @galen see my previous comment. – muzimuzhi Z Nov 09 '21 at 06:00