tikz.dev / tcolorbox Manual

The tcolorbox package

Libraries

11 Library skins - Catalog of Skins

The skins library provides a catalog of skins to choose from which is documented in the following. The skins library has to be loaded by a package option or inside the preamble by:

\tcbuselibrary{skins}

See Section 10 for the documentation of all other options of the skins library.

The auxiliary macro \skinExampleSet is used for the following examples to display skin applications. Note that \skinExampleSet is not part of the package, but is defined just for this documentation.

\NewDocumentCommand{\skinExampleSet}{m}{%
\begin{tcbraster}[raster equal height,raster columns=3,
colback=LightGreen,colframe=DarkGreen,colbacktitle=LimeGreen!75!DarkGreen,
#1,
left=1mm,right=1mm,top=1mm,bottom=1mm,middle=1mm,
sidebyside gap=4mm]
\begin{tcolorbox}
This is my content.
\end{tcolorbox}
\begin{tcolorbox}
This is my content.
\tcblower
More content.
\end{tcolorbox}
\begin{tcolorbox}[sidebyside]
My content.
\tcblower
More content.
\end{tcolorbox}
\begin{tcolorbox}[adjusted title=My title]
This is my content.
\end{tcolorbox}
\begin{tcolorbox}[adjusted title=My title]
This is my content.
\tcblower
More content.
\end{tcolorbox}
\begin{tcolorbox}[adjusted title=My title,sidebyside]
My content.
\tcblower
More content.
\end{tcolorbox}
\end{tcbraster}
}
11.1 Skin Family “standard”

Note that the option keys /tcb/frame style, /tcb/interior style, /tcb/segmentation style, and /tcb/title style are not be applicable to the standard skin. Also, watermarks (see Section 10.3) are not usable with the standard skin.

  • /tcb/skin=standard(skin)

    • This is the standard skin from the core package. All drawing engines are set to type standard. The drawing is based on pgf commands and does not need the tikz package.

    Compiled output

  • /tcb/standard(style, no value)

    • This is an abbreviation for setting skin=standard.

Compiled output

\skinExampleSet{standard}

  • /tcb/skin=standard jigsaw(skin)

    • This is the standard jigsaw skin from the core package. It differs from the skin standard by its frame engine, see Section 10.11.

    Compiled output

  • /tcb/standard jigsaw(style, no value)

    • This is an abbreviation for setting skin=standard jigsaw.

Compiled output

\skinExampleSet{standard jigsaw,
opacityframe=0.5,opacityback=0.5,opacitybacktitle=0.5,
}
11.2 Skin Family “enhanced”

If you like the standard appearance of a tcolorbox but you want to have some “enhanced” features, the enhanced skin is what you are looking for.

  • /tcb/skin=enhanced(skin)

    • This skin translates the drawing commands of the core package into TikZ path commands. Therefore, it allows all TikZ high level options for these paths and has more flexibility compared to the standard skin. You pay for this with some prolonged compilation time. The TikZ path options can be given with the option keys /tcb/frame style, /tcb/interior style, /tcb/segmentation style, and /tcb/title style.

    Compiled output

  • /tcb/enhanced(style, no value)

    • This is an abbreviation for setting skin=enhanced.

Compiled output

\skinExampleSet{enhanced}

Compiled output

% \usetikzlibrary{shadings} % preamble
\tcbset{skin=enhanced,fonttitle=\bfseries,
frame style={upper left=blue,upper right=red,lower left=yellow,lower right=green},
interior style={white,opacity=0.5},
segmentation style={black,solid,opacity=0.2,line width=1pt}}

\begin{tcolorbox}[title=Nice box in rainbow colors]
With the \enquote{enhanced} skin, it is quite easy to produce fancy looking effects.
\tcblower
Note that this is still a \texttt{tcolorbox}.
\end{tcolorbox}

Compiled output

% \usetikzlibrary{decorations.pathmorphing} % preamble
\tcbset{skin=enhanced,fonttitle=\bfseries,boxrule=1mm,
frame style={draw=FireBrick,fill=Salmon},drop fuzzy shadow,
interior style={draw=FireBrick,top color=Salmon!10,bottom color=Salmon!20},
segmentation style={draw=FireBrick,solid,decorate,
decoration={coil,aspect=0,segment length=10.1mm}}}

\begin{tcblisting}{title=A listing box with shadow and some specials}
Of course, skins can be used for listings also.
\begin{equation}
\int\limits_1^2 \frac{1}{x}~dx = \ln(2).
\end{equation}
\end{tcblisting}

  • /tcb/enhanced standard(style, no value)

    • This style sets the enhanced skin of an unbroken box for all boxes, including unbreakable boxes and every box of a break sequence. Thus, it is another variation of the standard skin, see Section 19.8.

  • \tcbline*

    • Equivalent to \tcbline, but in a breakable box, \tcbline* is removed if at a page/box break. Also, it is removed at the end of a box.

  • /tcb/skin=enhancedfirst(skin)

    • This is a flavor of enhanced which is used as a first part in a break sequence for enhanced. Nevertheless, this skin can be applied independently.

    Compiled output

Compiled output

\skinExampleSet{skin=enhancedfirst}

  • /tcb/skin=enhancedmiddle(skin)

    • This is a flavor of enhanced which is used as a middle part in a break sequence for enhanced. Nevertheless, this skin can be applied independently.

    Compiled output

Compiled output

\skinExampleSet{skin=enhancedmiddle}

  • /tcb/skin=enhancedlast(skin)

    • This is a flavor of enhanced which is used as a last part in a break sequence for enhanced. Nevertheless, this skin can be applied independently.

    Compiled output

Compiled output

\skinExampleSet{skin=enhancedlast}

  • /tcb/skin=enhanced jigsaw(skin)

    • This is the jigsaw variant of skin enhanced. It differs by its frame engine, see Section 10.11.

    Compiled output

  • /tcb/enhanced jigsaw(style, no value)

    • This is an abbreviation for setting skin=enhanced jigsaw.

Compiled output

\skinExampleSet{enhanced jigsaw,
opacityframe=0.5,opacityback=0.5,opacitybacktitle=0.5,
}

  • /tcb/enhanced standard jigsaw(style, no value)New: 2017-07-01

    • This style sets the enhanced jigsaw skin of an unbroken box for all boxes, including unbreakable boxes and every box of a break sequence. Thus, it is another variation of the standard skin, see Section 19.8.

Compiled output

\skinExampleSet{skin=enhancedfirst jigsaw,
opacityframe=0.5,opacityback=0.5,opacitybacktitle=0.5,
}

Compiled output

\skinExampleSet{skin=enhancedmiddle jigsaw,
opacityframe=0.5,opacityback=0.5,opacitybacktitle=0.5,
}
\tcbset{textmarker/.style={%
skin=enhancedmiddle jigsaw,breakable,parbox=false,
boxrule=0mm,leftrule=5mm,rightrule=5mm,boxsep=0mm,arc=0mm,outer arc=0mm,
left=3mm,right=3mm,top=1mm,bottom=1mm,toptitle=1mm,bottomtitle=1mm,oversize}}

\newtcolorbox{yellow}{textmarker,colback=yellow!5!white,colframe=yellow}
\newtcolorbox{orange}{textmarker,colback=DarkOrange!5!white,
colframe=DarkOrange!75!yellow}
\newtcolorbox{red}{textmarker,colback=red!5!white,colframe=red}
\newtcolorbox{blue}{textmarker,colback=DeepSkyBlue!5!white,colframe=DeepSkyBlue}
\newtcolorbox{green}{textmarker,colback=Chartreuse!5!white,colframe=Chartreuse}
\newtcolorbox{rainbow}{textmarker,interior hidden,
frame style={top color=blue,bottom color=red,middle color=green}}

\begin{yellow}
\lipsum[1-3]
\end{yellow}

\begin{orange}
\lipsum[4]
\end{orange}

\begin{red}
\lipsum[5]
\end{red}

\begin{green}
\lipsum[6]
\end{green}

\begin{blue}
\lipsum[7]
\end{blue}

\begin{rainbow}
\lipsum[8]
\end{rainbow}

Compiled output

\skinExampleSet{skin=enhancedlast jigsaw,
opacityframe=0.5,opacityback=0.5,opacitybacktitle=0.5,
}
11.3 Skin Family “bicolor”

  • /tcb/bicolor(style, no value)

    • This is an abbreviation for setting skin=bicolor.

Compiled output

\skinExampleSet{bicolor,
colbacklower=LimeGreen!75!LightGreen,
}

The following options /tcb/colbacklower and /tcb/opacitybacklower are executed before /tcb/segmentation style, i. e., /tcb/segmentation style overrules them.

  • /tcb/colbacklower=⟨color⟩(no default, initially black!15!white)

    • Sets the background ⟨color⟩ of the lower part. It depends on the skin, if this value is used.

Compiled output

\tcbset{gitexample/.style={listing and comment,comment={#1},
skin=bicolor,boxrule=1mm,fonttitle=\bfseries,coltitle=black,
frame style={draw=black,left color=Gold,right color=Goldenrod!50!Gold},
colback=black,colbacklower=Goldenrod!75!Gold,
colupper=white,collower=black,
listing options={language={bash},aboveskip=0pt,belowskip=0pt,nolol,
basicstyle=\ttfamily\bfseries,extendedchars=true}}}

\begin{tcblisting}{title={Snapshot of the staging area},
gitexample={The option `-a' automatically stages all tracked and modified
files before the commit.\par
This can be combined with the message option `-m'
as seen in the third line.}}
git commit
git commit -a
git commit -am 'changes to my example'
\end{tcblisting}

  • /tcb/opacitybacklower=⟨fraction⟩(no default, initially 1.0)New: 2021-05-21

    • Sets the background opacity of the lower part to the given ⟨fraction⟩. It depends on the skin, if this value is used.

Compiled output

\begin{tcolorbox}[bicolor,
frame style={preaction={fill=blue!50!black},
pattern=checkerboard,pattern color=blue!50!gray},
fonttitle=\bfseries, overlaplower=0mm,
colback=blue!10, colbacklower=white, opacitybacklower=0.65,
title={Example for a semilucent lower part}]
This is the upper part.
\tcblower
And that is the lower part.
\end{tcolorbox}

  • /tcb/overlaplower=⟨length⟩(no default, initially 0.1mm)New: 2022-01-11

    • The backgrounds of the lower parts for the skin families “bicolor”, “tile”, and “beamer” are drawn differently than the backgrounds of the upper parts. If the distance between these backgrounds of upper and lower parts is 0pt, some previewers show the frame color as thin line between upper and lower part. To avoid this glitch, the lower part is drawn with an overlap of ⟨length⟩ over the upper part. This value can be adapted for special applications. For example, semilucent lower parts better use 0pt, see /tcb/opacitybacklower. Also see \tcboverlaplower for using a larger value.

  • \tcboverlaplowerNew: 2022-01-11

    • Macro which contains the length value set by /tcb/overlaplower. May be used for fine positioning at the segmentation between upper and lower part and should be seen read-only.

    Compiled output

    \begin{tcolorbox}[bicolor, sharp corners,
    colframe=blue!50!black, colback=blue!10, colbacklower=red!10,
    top=5mm, bottom=2mm, middle=3.5mm, overlaplower=1.5mm,
    underlay={
    \node[minimum width=1cm,minimum height=0.5cm,outer sep=auto,
    anchor=north east,fill=white] at (interior.north east)
    {\itshape\small upper};
    \node[minimum width=1cm,minimum height=0.5cm,outer sep=auto,
    anchor=north east,fill=white]
    at ([yshift=\tcboverlaplower]segmentation.east)
    {\itshape\small lower};
    }
    ]
    This is the upper part.
    \tcblower
    And that is the lower part.
    \end{tcolorbox}

  • /tcb/skin=bicolorfirst(skin)

    • This is a flavor of bicolor which is used as a first part in a break sequence for bicolor. Nevertheless, this skin can be applied independently.

    Compiled output

Compiled output

\skinExampleSet{skin=bicolorfirst,
colbacklower=LimeGreen!75!LightGreen,
}

  • /tcb/skin=bicolormiddle(skin)

    • This is a flavor of bicolor which is used as a middle part in a break sequence for bicolor. Nevertheless, this skin can be applied independently.

    Compiled output

Compiled output

\skinExampleSet{skin=bicolormiddle,
colbacklower=LimeGreen!75!LightGreen,
}

  • /tcb/skin=bicolorlast(skin)

    • This is a flavor of bicolor which is used as a last part in a break sequence for bicolor. Nevertheless, this skin can be applied independently.

    Compiled output

Compiled output

\skinExampleSet{skin=bicolorlast,
colbacklower=LimeGreen!75!LightGreen,
}

  • /tcb/skin=bicolor jigsaw(skin)New: 2021-05-21

    • This is the jigsaw variant of skin bicolor. It differs by its frame engine, see Section 10.11.

    Compiled output

  • /tcb/bicolor jigsaw(style, no value)

    • This is an abbreviation for setting skin=enhanced jigsaw.

Compiled output

\skinExampleSet{bicolor jigsaw,
colbacklower=LimeGreen!75!LightGreen,
opacityframe=0.5,opacityback=0.5,opacitybacktitle=0.5,
opacitybacklower=0.5,
}

  • /tcb/skin=bicolorfirst jigsaw(skin)New: 2021-05-21

    • This is the jigsaw variant of skin bicolorfirst. It differs by its frame engine, see Section 10.11.

    Compiled output

Compiled output

\skinExampleSet{skin=bicolorfirst jigsaw,
colbacklower=LimeGreen!75!LightGreen,
opacityframe=0.5,opacityback=0.5,opacitybacktitle=0.5,
opacitybacklower=0.5,
}

  • /tcb/skin=bicolormiddle jigsaw(skin)New: 2021-05-21

    • This is the jigsaw variant of skin bicolormiddle. It differs by its frame engine, see Section 10.11.

    Compiled output

Compiled output

\skinExampleSet{skin=bicolormiddle jigsaw,
colbacklower=LimeGreen!75!LightGreen,
opacityframe=0.5,opacityback=0.5,opacitybacktitle=0.5,
opacitybacklower=0.5,
}

  • /tcb/skin=bicolorlast jigsaw(skin)New: 2021-05-21

    • This is the jigsaw variant of skin bicolorlast. It differs by its frame engine, see Section 10.11.

    Compiled output

Compiled output

\skinExampleSet{skin=bicolorlast jigsaw,
colbacklower=LimeGreen!75!LightGreen,
opacityframe=0.5,opacityback=0.5,opacitybacktitle=0.5,
opacitybacklower=0.5,
}
11.4 Skin Family “tile”

  • /tcb/skin=tile(skin)New: 2016-02-25

    • This skin is a variant of skin bicolor. Especially, the optional lower part of the box is colored by /tcb/colbacklower. The main difference to bicolor is that tile has no frame.

    Compiled output

  • /tcb/tile(style, initially
    skin=tile,boxrule=0pt,sharp corners,title filled,fonttitle=\textbackslash bfseries)    New: 2016-02-25

    • This key applies skin=tile and in addition changes the geometry and some style options.

Compiled output

\skinExampleSet{tile,
colbacklower=LimeGreen!75!LightGreen,
}

  • /tcb/skin=tilefirst(skin)New: 2016-02-25

    • This is a flavor of tile which is used as a first part in a break sequence for tile. Nevertheless, this skin can be applied independently.

    Compiled output

Compiled output

\skinExampleSet{skin=tilefirst,
colbacklower=LimeGreen!75!LightGreen,
boxrule=0pt,
}

  • /tcb/skin=tilemiddle(skin)New: 2016-02-25

    • This is a flavor of tile which is used as a middle part in a break sequence for tile. Nevertheless, this skin can be applied independently.

    Compiled output

Compiled output

\skinExampleSet{skin=tilemiddle,
colbacklower=LimeGreen!75!LightGreen,
boxrule=0pt,
}

  • /tcb/skin=tilelast(skin)New: 2016-02-25

    • This is a flavor of tile which is used as a last part in a break sequence for tile. Nevertheless, this skin can be applied independently.

    Compiled output

Compiled output

\skinExampleSet{skin=tilelast,
colbacklower=LimeGreen!75!LightGreen,
boxrule=0pt,
}
11.5 Skin Family “beamer”

  • /tcb/skin=beamer(skin)

    • This skin resembles boxes known from the beamer class and therefore is called “beamer”. It uses the normal colors from the core package but shades them a little bit. While the motivation for this skin is to use “beamerish” looking boxes apart from the beamer class, one may want to use tcolorboxes as blocks inside beamer slides. For this purpose see the package beamertheme-tcolorbox which provides a beamer inner theme reproducing standard beamer blocks using tcolorboxes.

    Compiled output

  • /tcb/beamer(style, initially
    skin=beamer,boxrule=0mm,titlerule=1mm,toptitle=0.5mm,
    arc=2mm,fonttitle=\textbackslash bfseries,drop fuzzy shadow)

    • This key applies skin=beamer and in addition changes the geometry and some style options.

Compiled output

\skinExampleSet{beamer,title filled=false}

Compiled output

\begin{tcolorbox}[beamer,colback=Salmon!50!white,colframe=FireBrick!75!black,
adjusted title=A colored box with the \enquote{beamer} skin]
This box looks like a box provided by the \texttt{beamer} class.
\end{tcolorbox}

Compiled output

\begin{tcolorbox}[beamer,colframe=blue,colback=black,
watermark graphics=lichtspiel.jpg,
coltext=white,watermark opacity=0.75,watermark stretch=1.0,
title=Beamer Box with background picture]
\lipsum[1]
\end{tcolorbox}

Compiled output

\newtcolorbox{myblock}[2][]{%
beamer,breakable,colback=LightBlue,colframe=DarkBlue,#1,title={#2}}%

\begin{myblock}{Beamerish \texttt{block}: \texttt{myblock}}
\lipsum[1]
\end{myblock}

  • /tcb/skin=beamerfirst(skin)

    • This is a flavor of beamer which is used as a first part in a break sequence for beamer. Nevertheless, this skin can be applied independently.

    Compiled output

Compiled output

\skinExampleSet{beamer,title filled=false,skin=beamerfirst}

  • /tcb/skin=beamermiddle(skin)

    • This is a flavor of beamer which is used as a middle part in a break sequence for beamer. Nevertheless, this skin can be applied independently.

    Compiled output

Compiled output

\skinExampleSet{beamer,title filled=false,skin=beamermiddle}

  • /tcb/skin=beamerlast(skin)

    • This is a flavor of beamer which is used as a last part in a break sequence for beamer. Nevertheless, this skin can be applied independently.

    Compiled output

Compiled output

\skinExampleSet{beamer,title filled=false,skin=beamerlast}
11.6 Skin Family “widget”

  • /tcb/widget(style, initially
    skin=widget,arc=0.5mm,fonttitle=\bfseries,titlerule=0mm)    Updated: 2020-09-23

    • This key applies skin=widget and in addition changes the geometry and some style options.

Compiled output

\skinExampleSet{widget}

Compiled output

\begin{tcolorbox}[widget,colback=Salmon!50!white,colframe=FireBrick!75!black,
adjusted title=A colored box with the \enquote{widget} skin]
This is my content.
\end{tcolorbox}

  • /tcb/skin=widgetfirst(skin)

    • This is a flavor of widget which is used as a first part in a break sequence for widget. Nevertheless, this skin can be applied independently.

    Compiled output

Compiled output

\skinExampleSet{widget,skin=widgetfirst}

  • /tcb/skin=widgetmiddle(skin)

    • This is a flavor of widget which is used as a middle part in a break sequence for widget. Nevertheless, this skin can be applied independently.

    Compiled output

Compiled output

\skinExampleSet{widget,skin=widgetmiddle}

  • /tcb/skin=widgetlast(skin)

    • This is a flavor of widget which is used as a last part in a break sequence for widget. Nevertheless, this skin can be applied independently.

    Compiled output

Compiled output

\skinExampleSet{widget,skin=widgetlast}
11.7 Skin Family “empty”

  • /tcb/skin=empty(skin)

    • This skin sets all engines to empty, i. e., nothing is drawn at all. Therefore, this skin is a good starting point to create a complete new style by yourself.

    Compiled output

Note that the text colors stay unchanged when a skin is applied. Since the standard title color is white, the title of a box with skin empty becomes invisible, if not set to another color by /tcb/coltitle.

  • /tcb/empty(style, no value)

    • This is an abbreviation for setting skin=empty.

Compiled output

\skinExampleSet{empty,
coltitle=Navy,borderline={2pt}{0pt}{black!10!white},
}

  • /tcb/blanker(style, initially unset)

    • This style relies on the skin empty. All engines are set to empty and all margins are set to 0pt. In contrast to /tcb/blank, the graphical paths are not constructed with exception of the geometry nodes.

    Compiled output

    \begin{tcolorbox}[blanker,watermark text=A blank box]
    \lipsum[1]
    \end{tcolorbox}

    Compiled output

    % \tcbuselibrary{fitting}
    \newtcboxfit{\mybox}[1]{blanker,width=4cm,height=7cm,top=4pt,
    watermark text=#1}

    \begin{tabular}{|c|c|c|}\hline
    A & B & C\\\hline
    \mybox{A}{\lipsum[1]} & \mybox{B}{\lipsum[2]} & \mybox{C}{\lipsum[3]}\\\hline
    \end{tabular}

  • /tcb/skin=emptyfirst(skin)

    • This is a flavor of empty which is used as a first part in a break sequence for empty. Nevertheless, this skin can be applied independently.

    Compiled output

Compiled output

\skinExampleSet{skin=emptyfirst,
coltitle=Navy,borderline={2pt}{0pt}{black!10!white},
}

  • /tcb/skin=emptymiddle(skin)

    • This is a flavor of empty which is used as a middle part in a break sequence for empty. Nevertheless, this skin can be applied independently.

    Compiled output

Compiled output

\skinExampleSet{skin=emptymiddle,
coltitle=Navy,borderline={2pt}{0pt}{black!10!white},
}

  • /tcb/skin=emptylast(skin)

    • This is a flavor of empty which is used as a last part in a break sequence for empty. Nevertheless, this skin can be applied independently.

    Compiled output

Compiled output

\skinExampleSet{skin=emptylast,
coltitle=Navy,borderline={2pt}{0pt}{black!10!white},
}
% Preamble:
%\usepackage{lipsum}
%\tcbuselibrary{skins,breakable}
\tikzset{coltria/.style={fill=red!15!white}}

\newtcolorbox{freebox}[1][]{empty,
breakable,height fixed for=first and middle,
leftrule=5mm,left=2mm,
frame style={fill,top color=red!75!black,bottom color=red!75!black,middle color=red},
colback=yellow!50!white,
watermark color=red!50!yellow!75!white,
watermark text on=unbroken is unbroken box,
watermark text on=first is first part,
watermark text on=middle is middle part,
watermark text on=last is last part,
% code for unbroken boxes:
frame code={\path[tcb fill frame] (frame.south west)--(frame.north west)
--([xshift=-5mm]frame.north east)--([yshift=-5mm]frame.north east)
--([yshift=5mm]frame.south east)--([xshift=-5mm]frame.south east)--cycle; },
interior code={\path[tcb fill interior] (interior.south west)--(interior.north west)
--([xshift=-4.8mm]interior.north east)--([yshift=-4.8mm]interior.north east)
--([yshift=4.8mm]interior.south east)--([xshift=-4.8mm]interior.south east)
--cycle; },
% code for the first part of a break sequence:
skin first is subskin of={emptyfirst}{%
frame code={\path[tcb fill frame] (frame.south west)--(frame.north west)
--([xshift=-5mm]frame.north east)--([yshift=-5mm]frame.north east)
--(frame.south east)--cycle;
\path[coltria] ([xshift=2.5mm,yshift=1mm]frame.south west) -- +(120:2mm)
-- +(60:2mm)-- cycle; },
interior code={\path[tcb fill interior] (interior.south west|-frame.south)
--(interior.north west)--([xshift=-4.8mm]interior.north east)
--([yshift=-4.8mm]interior.north east)--(interior.south east|-frame.south)
--cycle; },
},%
% code for the middle part of a break sequence:
skin middle is subskin of={emptymiddle}{%
frame code={\path[tcb fill frame] (frame.south west)--(frame.north west)
--(frame.north east)--(frame.south east)--cycle;
\path[coltria] ([xshift=2.5mm,yshift=-1mm]frame.north west) -- +(240:2mm)
-- +(300:2mm) -- cycle;
\path[coltria] ([xshift=2.5mm,yshift=1mm]frame.south west) -- +(120:2mm)
-- +(60:2mm) -- cycle;
},
interior code={\path[tcb fill interior] (interior.south west|-frame.south)
--(interior.north west|-frame.north)--(interior.north east|-frame.north)
--(interior.south east|-frame.south)--cycle; },
},
% code for the last part of a break sequence:
skin last is subskin of={emptylast}{%
frame code={\path[tcb fill frame] (frame.south west)--(frame.north west)
--(frame.north east)--([yshift=5mm]frame.south east)
--([xshift=-5mm]frame.south east)--cycle;
\path[coltria] ([xshift=2.5mm,yshift=-1mm]frame.north west) -- +(240:2mm)
-- +(300:2mm) -- cycle;
},
interior code={\path[tcb fill interior] (interior.south west)
--(interior.north west|-frame.north)--(interior.north east|-frame.north)
--([yshift=4.8mm]interior.south east)--([xshift=-4.8mm]interior.south east)
--cycle; },
},
#1}

\begin{freebox}
\lipsum[1]
\end{freebox}

\begin{freebox}
\lipsum[1-12]
\end{freebox}
11.8 Skin “spartan”

  • /tcb/skin=spartan(skin)

    • This skin is quite … spartan. It supports no rounded corners, no overlays, no shadows, no borderlines, and no finishes. The only exception are underlays. One cannot do very fancy things with this skin, but it compiles very fast. Therefore, the spartan skin is used for the draft mode, see Section 10.12. Nevertheless, it can be used as a normal skin.

    Compiled output

  • /tcb/spartan(style, no value)

    • This is an abbreviation for setting skin=spartan.

Compiled output

\skinExampleSet{spartan}
11.9 Skin “draft”

  • /tcb/skin=draft(skin)

    • This skin is intended to be used while drafting new geometric settings for a tcolorbox.

    Compiled output

  • /tcb/draft(style, no value)

    • This is an abbreviation for setting skin=draft.

Compiled output

\skinExampleSet{draft}

Compiled output

\vspace*{3mm}
\begin{tcolorbox}[draft,title=A colored box with the \enquote{draft} skin]
\lipsum[1-3]
\tcblower
\lipsum[4-6]
\end{tcolorbox}
11.10 Skin Family “freelance”

This skin family “freelance” is deprecated with tcolorbox 3.00. It is not longer needed, because /tcb/frame code, /tcb/interior code, /tcb/interior titled code, and /tcb/title code can be applied to every skin now. In this sense, everything has become freelance now. For users of /tcb/freelance: Old code should continue to work. There may be exceptions for breakable freelance boxes under certain circumstances. For new code, use /tcb/empty or /tcb/enhanced where you would have used /tcb/freelance before.

  • /tcb/skin=freelance(skin)

    • This skin gives full freedom for the appearance of the tcolorbox. All drawing engines are set to type freelance; they use the tikz package and compute the /tcb/geometry nodes.

    Compiled output

  • /tcb/freelance(style, no value)

    • This is an abbreviation for setting skin=freelance.

  • /tcb/extend freelance=⟨options⟩(no default, initially empty)

    • The ⟨options⟩ are added to the skin definition of freelance.

  • /tcb/extend freelancelast=⟨options⟩(no default, initially empty)

    • The ⟨options⟩ are added to the skin definition of freelancelast which is used as last part of the break sequence of freelance. See /tcb/skin last is subskin of for a substitute of this key.