tikzlings (17mar21)

git-svn-id: svn://tug.org/texlive/trunk@58469 c570f23f-e606-0410-a88d-b1316a301751
author: Karl Berry <karl@freefriends.org> 2021-03-17 21:39:31 +0000
committer: Karl Berry <karl@freefriends.org> 2021-03-17 21:39:31 +0000
commit: 33ae88e5a364265d921e4db20d33f86d401a095f (patch)
tree: d2d34a5e1e9bec0d7dcf76600fac0c77585d16b7 /Master/texmf-dist/tex/latex/tikzlings
parent: ea174d11ebe4836a256865f9b5c7f3b1e9b72d72 (diff)
22 files changed, 711 insertions, 246 deletions
diff --git a/Master/texmf-dist/tex/latex/tikzlings/tikzlings-addons.sty b/Master/texmf-dist/tex/latex/tikzlings/tikzlings-addons.sty
index dc96d7a5e2a..3251df7a1bf 100644
--- a/Master/texmf-dist/tex/latex/tikzlings/tikzlings-addons.sty
+++ b/Master/texmf-dist/tex/latex/tikzlings/tikzlings-addons.sty
@@ -12,7 +12,7 @@
 % See http://www.latex-project.org/lppl.txt
 %
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-\ProvidesPackage{tikzlings-addons}[2020/12/04 version v0.4 Draw additional items for the tikzlings]
+\ProvidesPackage{tikzlings-addons}[2021/03/17 version v0.5 Draw additional items for the tikzlings]
 
 \RequirePackage{tikz}
 \usetikzlibrary{patterns} % for the wizard hat
@@ -81,7 +81,7 @@
   %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
   /thing/.search also={%
     /tikz,/pgf,
-    /bear,/coati,/koala,/marmot,/mouse,/owl,/penguin,/snowman,/mole,/sloth,/pig,/cat,/hippo,/rhino,/panda,/bee,/anteater,/squirrel,/sheep,
+    /bear,/coati,/koala,/marmot,/mouse,/owl,/penguin,/snowman,/moles,/sloth,/pig,/cat,/hippo,/rhino,/panda,/bee,/anteater,/squirrel,/sheep,
   },
   %/thing/.unknown/.code=\relax, % bad idea, prevents tikz/pgf keys
   /thing/.cd,
diff --git a/Master/texmf-dist/tex/latex/tikzlings/tikzlings-anteaters.sty b/Master/texmf-dist/tex/latex/tikzlings/tikzlings-anteaters.sty
index 59c1b3722c3..773eb978649 100644
--- a/Master/texmf-dist/tex/latex/tikzlings/tikzlings-anteaters.sty
+++ b/Master/texmf-dist/tex/latex/tikzlings/tikzlings-anteaters.sty
@@ -12,7 +12,7 @@
 % See http://www.latex-project.org/lppl.txt
 %
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-\ProvidesPackage{tikzlings-anteaters}[2020/12/04 version v0.4 Drawing anteaters in TikZ]
+\ProvidesPackage{tikzlings-anteaters}[2021/03/17 version v0.5 Drawing anteaters in TikZ]
 
 \RequirePackage{tikz}
 \RequirePackage{tikzlings-addons}
@@ -30,6 +30,7 @@
 
 \newif\ifanteater@threeD
 \newif\ifanteater@back
+\newif\ifanteater@contour
 
 \tikzset{
   %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
@@ -46,6 +47,8 @@
   %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
   body/.code         = \def\anteater@body{#1},
   body               = red!55!green!75!blue!66!white,
+  eye/.code          = \def\anteater@eye{#1},
+  eye                = \anteater@body!70!brown!50!darkgray,   
   %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
   %
   % options
@@ -53,6 +56,10 @@
   %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
   3D/.code           = \anteater@threeDtrue,  
   back/.code         = \anteater@backtrue,  
+  contour/.code      = \anteater@contourtrue
+                       \def\anteater@contour{#1},
+  contour/.default   = black,  
+  outline/.forward to = /anteater/contour,   
 }
 
 \def\anteater@draw{%
@@ -77,14 +84,18 @@
 %
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 % 
-% switch between 2D and 3D, from
+% switch between 2D, 3D and contours, from
 % https://chat.stackexchange.com/transcript/message/45991801#45991801
 %
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 \ifanteater@threeD
   \def\anteater@part@draw[##1]{\shade[ball color=##1]}
 \else
-  \def\anteater@part@draw[##1]{\fill[##1]}
+  \ifanteater@contour
+    \def\anteater@part@draw[##1]{\draw[##1,\anteater@contour,fill=white,line width=\scalingfactor*0.4pt]}
+  \else
+    \def\anteater@part@draw[##1]{\fill[##1]}
+  \fi
 \fi
 %
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
@@ -151,8 +162,8 @@
   \anteater@part@draw[\anteater@body!70!brown!50!darkgray] (0, 1.08) ellipse[x radius=0.08, y radius=0.05];
   %
   % Eyes %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-  \anteater@part@draw[\anteater@body!70!brown!50!darkgray] (0.23, 1.7) circle[radius=0.05];
-  \anteater@part@draw[\anteater@body!70!brown!50!darkgray] (-0.23, 1.7) circle[radius=0.05];  
+  \anteater@part@draw[\anteater@eye] (0.23, 1.7) circle[radius=0.05];
+  \anteater@part@draw[\anteater@eye] (-0.23, 1.7) circle[radius=0.05];  
 \fi
 %
 % Tail if back %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
diff --git a/Master/texmf-dist/tex/latex/tikzlings/tikzlings-bears.sty b/Master/texmf-dist/tex/latex/tikzlings/tikzlings-bears.sty
index a02985ca912..63d6a283e54 100644
--- a/Master/texmf-dist/tex/latex/tikzlings/tikzlings-bears.sty
+++ b/Master/texmf-dist/tex/latex/tikzlings/tikzlings-bears.sty
@@ -12,7 +12,7 @@
 % See http://www.latex-project.org/lppl.txt
 %
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-\ProvidesPackage{tikzlings-bears}[2020/12/04 version v0.4 Draw teddy bears in TikZ]
+\ProvidesPackage{tikzlings-bears}[2021/03/17 version v0.5 Draw teddy bears in TikZ]
 
 \RequirePackage{tikz}
 \RequirePackage{tikzlings-addons}
@@ -30,6 +30,7 @@
 
 \newif\ifbear@threeD
 \newif\ifbear@back
+\newif\ifbear@contour
 
 \tikzset{
   %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
@@ -46,6 +47,8 @@
   %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
   body/.code         = \def\bear@body{#1},
   body               = brown,
+  eye/.code          = \def\bear@eye{#1},
+  eye                = \bear@body!30!black,  
   %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
   %
   % options
@@ -53,6 +56,10 @@
   %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
   3D/.code           = \bear@threeDtrue, 
   back/.code         = \bear@backtrue,  
+  contour/.code      = \bear@contourtrue
+                       \def\bear@contour{#1},
+  contour/.default   = black,  
+  outline/.forward to = /bear/contour,   
 }
 
 \def\bear@draw{%
@@ -76,14 +83,18 @@
 %
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 % 
-% switch between 2D and 3D, from
+% switch between 2D, 3D and contours, from
 % https://chat.stackexchange.com/transcript/message/45991801#45991801
 %
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 \ifbear@threeD
   \def\bear@part@draw[##1]{\shade[ball color=##1]}
 \else
-  \def\bear@part@draw[##1]{\fill[##1]}
+  \ifbear@contour
+    \def\bear@part@draw[##1]{\draw[##1,\bear@contour,fill=white,line width=\scalingfactor*0.4pt]}
+  \else
+    \def\bear@part@draw[##1]{\fill[##1]}
+  \fi
 \fi
 %
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
@@ -143,11 +154,15 @@
 \bear@part@draw[\bear@body!70!white!80!red] (0, 1.5) ellipse[x radius=0.15, y radius=0.08]; 
 %
 % Eyes %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-\bear@part@draw[\bear@body!30!black] (-0.155, 1.7) circle[radius=0.05]; 
-\bear@part@draw[\bear@body!30!black] (0.155, 1.7) circle[radius=0.05]; 
+\bear@part@draw[\bear@eye] (-0.155, 1.7) circle[radius=0.05]; 
+\bear@part@draw[\bear@eye] (0.155, 1.7) circle[radius=0.05]; 
 %
 % Mouth %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-\draw[\bear@body!30!black,line width=\scalingfactor*0.4pt] (0.145, 1.38) arc [start angle=-20, end angle=-160, radius=0.16];
+\ifbear@contour
+  \draw[\bear@contour,line width=\scalingfactor*0.4pt] (0.145, 1.38) arc [start angle=-20, end angle=-160, radius=0.16];
+\else
+  \draw[\bear@body!30!black,line width=\scalingfactor*0.4pt] (0.145, 1.38) arc [start angle=-20, end angle=-160, radius=0.16];
+\fi
 %
 \fi
 %
diff --git a/Master/texmf-dist/tex/latex/tikzlings/tikzlings-bees.sty b/Master/texmf-dist/tex/latex/tikzlings/tikzlings-bees.sty
index 8446a6c67f8..ab04664ca1f 100644
--- a/Master/texmf-dist/tex/latex/tikzlings/tikzlings-bees.sty
+++ b/Master/texmf-dist/tex/latex/tikzlings/tikzlings-bees.sty
@@ -12,7 +12,7 @@
 % See http://www.latex-project.org/lppl.txt
 %
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-\ProvidesPackage{tikzlings-bees}[2020/12/04 version v0.4 Drawing bees in TikZ]
+\ProvidesPackage{tikzlings-bees}[2021/03/17 version v0.5 Drawing bees in TikZ]
 
 \RequirePackage{tikz}
 \RequirePackage{tikzlings-addons}
@@ -31,6 +31,7 @@
 
 \newif\ifbee@threeD
 \newif\ifbee@back
+\newif\ifbee@contour
 
 \tikzset{
   %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
@@ -55,8 +56,8 @@
   stripes            = black,     
   antennas/.code     = \def\bee@antennas{#1},
   antennas           = black,     
-  eye/.code         = \def\bee@eye{#1},
-  eye               = black,   
+  eye/.code          = \def\bee@eye{#1},
+  eye                = black,   
   mouth/.code        = \def\bee@mouth{#1},
   mouth              = black,      
   %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
@@ -66,6 +67,12 @@
   %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
   3D/.code           = \bee@threeDtrue,  
   back/.code         = \bee@backtrue,       
+  contour/.code      = \bee@contourtrue
+                       \def\bee@contour{#1}
+                       \def\bee@antennas{#1}
+                       \def\bee@mouth{#1},
+  contour/.default   = black,  
+  outline/.forward to = /bee/contour,   
 }
 
 \def\bee@draw{%
@@ -89,14 +96,18 @@
 %
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 % 
-% switch between 2D and 3D, from
+% switch between 2D, 3D and contours, from
 % https://chat.stackexchange.com/transcript/message/45991801#45991801
 %
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 \ifbee@threeD
   \def\bee@part@draw[##1]{\shade[ball color=##1]}
 \else
-  \def\bee@part@draw[##1]{\fill[##1]}
+  \ifbee@contour
+    \def\bee@part@draw[##1]{\draw[##1,\bee@contour,fill=white,line width=\scalingfactor*0.4pt]}
+  \else
+    \def\bee@part@draw[##1]{\fill[##1]}
+  \fi
 \fi
 %
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
@@ -117,14 +128,25 @@
   \bee@part@draw[\bee@antennas] (0.22,2.30) circle[radius=0.07];
 \else
   % Wings %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-  \fill[\bee@wings] (0.45,1.25) circle[radius=0.35] (0.5,0.8) circle[radius=0.35];
-  \fill[\bee@wings] (-0.45,1.25) circle[radius=0.35](-0.5,0.8) circle[radius=0.35];
+  \ifbee@contour
+    \bee@part@draw[\bee@wings] (0.5,0.8) circle[radius=0.35];
+    \bee@part@draw[\bee@wings] (0.45,1.25) circle[radius=0.35];
+    \bee@part@draw[\bee@wings] (-0.5,0.8) circle[radius=0.35];
+    \bee@part@draw[\bee@wings] (-0.45,1.25) circle[radius=0.35];
+  \else
+    \fill[\bee@wings] (0.45,1.25) circle[radius=0.35] (0.5,0.8) circle[radius=0.35];
+    \fill[\bee@wings] (-0.45,1.25) circle[radius=0.35](-0.5,0.8) circle[radius=0.35];
+  \fi
 \fi
 %
 % Body %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 \begin{scope}
   \clip (0,2.1) to[out=180,in=140,looseness=1.2] (-0.3,1.5) to[out=-110,in=180,looseness=1.2] (0,0.15) to[out=00,in=-65,looseness=1.2] (0.3,1.5) to[out=40,in=0,looseness=1.2] cycle;
-  \bee@part@draw[\bee@body] (0,2.1) to[out=180,in=140,looseness=1.2] (-0.3,1.5) to[out=-110,in=180,looseness=1.2] (0,0.15) to[out=00,in=-65,looseness=1.2] (0.3,1.5) to[out=40,in=0,looseness=1.2] cycle;
+  \ifbee@contour
+    \draw[\bee@contour,fill=white,line width=\scalingfactor*0.8pt] (0,2.1) to[out=180,in=140,looseness=1.2] (-0.3,1.5) to[out=-110,in=180,looseness=1.2] (0,0.15) to[out=00,in=-65,looseness=1.2] (0.3,1.5) to[out=40,in=0,looseness=1.2] cycle;
+  \else
+    \bee@part@draw[\bee@body] (0,2.1) to[out=180,in=140,looseness=1.2] (-0.3,1.5) to[out=-110,in=180,looseness=1.2] (0,0.15) to[out=00,in=-65,looseness=1.2] (0.3,1.5) to[out=40,in=0,looseness=1.2] cycle;
+  \fi
   % stripes
   \bee@part@draw[\bee@stripes] (-0.475,1.3) arc(180:360:0.5 and 0.1) -- ++ (0,-0.15) arc(360:180:0.5 and 0.1) -- cycle
   (-0.475,1.0) arc(180:360:0.5 and 0.1) -- ++ (0,-0.15) arc(360:180:0.5 and 0.1) -- cycle
@@ -140,8 +162,15 @@
 \ifbee@back
   %
   % Wings %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-  \fill[\bee@wings] (0.45,1.25) circle[radius=0.35] (0.5,0.8) circle[radius=0.35];
-  \fill[\bee@wings] (-0.45,1.25) circle[radius=0.35](-0.5,0.8) circle[radius=0.35];
+  \ifbee@contour
+    \bee@part@draw[\bee@wings] (0.5,0.8) circle[radius=0.35];
+    \bee@part@draw[\bee@wings] (0.45,1.25) circle[radius=0.35];
+    \bee@part@draw[\bee@wings] (-0.5,0.8) circle[radius=0.35];
+    \bee@part@draw[\bee@wings] (-0.45,1.25) circle[radius=0.35];
+  \else
+    \fill[\bee@wings] (0.45,1.25) circle[radius=0.35] (0.5,0.8) circle[radius=0.35];
+    \fill[\bee@wings] (-0.45,1.25) circle[radius=0.35](-0.5,0.8) circle[radius=0.35];
+  \fi
 \else
   %
   % Eyes %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
diff --git a/Master/texmf-dist/tex/latex/tikzlings/tikzlings-cats.sty b/Master/texmf-dist/tex/latex/tikzlings/tikzlings-cats.sty
index da37457c67c..92b3b901228 100644
--- a/Master/texmf-dist/tex/latex/tikzlings/tikzlings-cats.sty
+++ b/Master/texmf-dist/tex/latex/tikzlings/tikzlings-cats.sty
@@ -12,7 +12,7 @@
 % See http://www.latex-project.org/lppl.txt
 %
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-\ProvidesPackage{tikzlings-cats}[2020/12/04 version v0.4 Drawing cats in TikZ]
+\ProvidesPackage{tikzlings-cats}[2021/03/17 version v0.5 Drawing cats in TikZ]
 
 \RequirePackage{tikz}
 \RequirePackage{tikzlings-addons}
@@ -58,6 +58,7 @@
 \newif\ifcat@threeD
 \newif\ifcat@schroedinger
 \newif\ifcat@back
+\newif\ifcat@contour
 
 \tikzset{
   %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
@@ -76,8 +77,9 @@
   body                    = gray!30!black,
   whiskers/.code          = \def\cat@whiskers{#1},
   whiskers                = gray!50!white,
-  eyes/.code              = \def\cat@eyes{#1},
-  eyes                    = yellow!80!orange,
+  eye/.code               = \def\cat@eye{#1},
+  eye                     = yellow!80!orange,
+  eyes/.forward to        = /cat/eye,
   pupil/.code             = \def\cat@pupil{#1},
   pupil                   = black,
   pupilwidth/.code        = \def\cat@pupil@width{#1}\edef\cat@pupil@offset{\strip@pt\dimexpr#1pt/4},
@@ -99,6 +101,11 @@
   3D/.code           = \cat@threeDtrue,
   schroedinger/.code = \cat@schroedingertrue,
   back/.code         = \cat@backtrue,  
+  contour/.code      = \cat@contourtrue
+                       \def\cat@contour{#1}
+                       \def\cat@whiskers{#1},
+  contour/.default   = black,  
+  outline/.forward to = /cat/contour,   
 }
 
 \def\cat@draw{%
@@ -123,14 +130,18 @@
 %
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 % 
-% switch between 2D and 3D, from
+% switch between 2D, 3D and contours, from
 % https://chat.stackexchange.com/transcript/message/45991801#45991801
 %
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 \ifcat@threeD
   \def\cat@part@draw[##1]{\shade[ball color=##1]}
 \else
-  \def\cat@part@draw[##1]{\fill[##1]}
+  \ifcat@contour
+    \def\cat@part@draw[##1]{\draw[##1,\cat@contour,fill=white,line width=\scalingfactor*0.4pt]}
+  \else
+    \def\cat@part@draw[##1]{\fill[##1]}
+  \fi
 \fi
 %
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
@@ -174,8 +185,8 @@
 \ifcat@back\else
 %
 % Eyes %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-\cat@part@draw[\cat@eyes] (-0.1014, 1.7491) .. controls (-0.1014, 1.7491) and (-0.1451, 1.7171) .. (-0.1841, 1.7284) .. controls (-0.2231, 1.7397) and (-0.2427, 1.79) .. (-0.2427, 1.79) .. controls (-0.2427, 1.79) and (-0.1992, 1.8221) .. (-0.1602, 1.8108) .. controls (-0.1212, 1.7995) and (-0.1014, 1.7491) .. (-0.1014, 1.7491) -- cycle;
-\cat@part@draw[\cat@eyes] (0.1014, 1.7491) .. controls (0.1014, 1.7491) and (0.1451, 1.7171) .. (0.1841, 1.7284) .. controls (0.2231, 1.7397) and (0.2427, 1.79) .. (0.2427, 1.79) .. controls (0.2427, 1.79) and (0.1992, 1.8221) .. (0.1602, 1.8108) .. controls (0.1212, 1.7995) and (0.1014, 1.7491) .. (0.1014, 1.7491) -- cycle;
+\cat@part@draw[\cat@eye] (-0.1014, 1.7491) .. controls (-0.1014, 1.7491) and (-0.1451, 1.7171) .. (-0.1841, 1.7284) .. controls (-0.2231, 1.7397) and (-0.2427, 1.79) .. (-0.2427, 1.79) .. controls (-0.2427, 1.79) and (-0.1992, 1.8221) .. (-0.1602, 1.8108) .. controls (-0.1212, 1.7995) and (-0.1014, 1.7491) .. (-0.1014, 1.7491) -- cycle;
+\cat@part@draw[\cat@eye] (0.1014, 1.7491) .. controls (0.1014, 1.7491) and (0.1451, 1.7171) .. (0.1841, 1.7284) .. controls (0.2231, 1.7397) and (0.2427, 1.79) .. (0.2427, 1.79) .. controls (0.2427, 1.79) and (0.1992, 1.8221) .. (0.1602, 1.8108) .. controls (0.1212, 1.7995) and (0.1014, 1.7491) .. (0.1014, 1.7491) -- cycle;
 %
 % Pupils %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 \cat@part@draw[\cat@pupil]
@@ -236,6 +247,22 @@
 %
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 % 
+% switch between 2D, 3D and contours, from
+% https://chat.stackexchange.com/transcript/message/45991801#45991801
+%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+\ifcat@threeD
+  \def\cat@part@draw[##1]{\shade[ball color=##1]}
+\else
+  \ifcat@contour
+    \def\cat@part@draw[##1]{\draw[##1,\cat@contour,fill=white,line width=\scalingfactor*0.4pt]}
+  \else
+    \def\cat@part@draw[##1]{\fill[##1]}
+  \fi
+\fi
+%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+% 
 % Drawing the tomebstone
 %
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
@@ -245,8 +272,7 @@
 \csname tikzlinghookbackground\endcsname
 %
 % Stone %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-\fill[gray] (-0.55,0.4) rectangle (0.55,1.5);
-\fill[gray] (0,1.5) circle[radius=0.55];
+\cat@part@draw[gray] (-0.55,0.4) -- (-0.55,1.5) arc [start angle=180, end angle=0, radius=0.55] -- (0.55,0.4) -- cycle;
 \node[scale=\scalingfactor] at (0,1.3) {R.I.P.};
 %
 % adding hook for users to customise %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
@@ -254,14 +280,18 @@
 \csname tikzlinghookbelly\endcsname
 %
 % soil %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-\fill[brown!65!black] (1,0.15) arc [start angle=50, end angle=130, radius=1.56] -- cycle;
+\cat@part@draw[brown!65!black] (1,0.15) arc [start angle=50, end angle=130, radius=1.56] -- cycle;
 %
 % flower
-\draw[green!50!brown,line width=\scalingfactor*0.4pt] (-0.01,0.3) arc [start angle=-15, end angle=30, radius=0.7];
-\fill[green!50!brown] (-0.1377, 0.7384) .. controls (-0.1775, 0.5828) and (-0.1479, 0.4649) .. (0.0072, 0.4246) .. controls (0.0570, 0.5636) and (-0.1529, 0.6447) .. (-0.1377, 0.7384) -- cycle;
-\fill[green!50!brown] (0.1527, 0.7334) .. controls (0.1925, 0.5778) and (0.1629, 0.4599) .. (0.0178, 0.4196) .. controls (-0.0420, 0.5586) and (0.1679, 0.6397) .. (0.1527, 0.7334) -- cycle;
+\ifcat@contour
+  \draw[\cat@contour,line width=\scalingfactor*0.4pt] (-0.01,0.3) arc [start angle=-15, end angle=30, radius=0.7];
+\else
+  \draw[green!50!brown,line width=\scalingfactor*0.4pt] (-0.01,0.3) arc [start angle=-15, end angle=30, radius=0.7];
+\fi
+\cat@part@draw[green!50!brown] (-0.1377, 0.7384) .. controls (-0.1775, 0.5828) and (-0.1479, 0.4649) .. (0.0072, 0.4246) .. controls (0.0570, 0.5636) and (-0.1529, 0.6447) .. (-0.1377, 0.7384) -- cycle;
+\cat@part@draw[green!50!brown] (0.1527, 0.7334) .. controls (0.1925, 0.5778) and (0.1629, 0.4599) .. (0.0178, 0.4196) .. controls (-0.0420, 0.5586) and (0.1679, 0.6397) .. (0.1527, 0.7334) -- cycle;
 \foreach \i in {0,51.42857,...,359}{
-  \fill[yellow!50!white,rotate around={\i:(-0.0865, 0.8219)}] (-0.087, 0.822) .. controls (-0.087, 0.822) and (-0.1635, 0.6638) .. (-0.0818, 0.6653) .. controls (-0.0066, 0.6646) and (-0.087, 0.822) .. (-0.087, 0.822) -- cycle;
+  \cat@part@draw[yellow!50!white,rotate around={\i:(-0.0865, 0.8219)}] (-0.087, 0.822) .. controls (-0.087, 0.822) and (-0.1635, 0.6638) .. (-0.0818, 0.6653) .. controls (-0.0066, 0.6646) and (-0.087, 0.822) .. (-0.087, 0.822) -- cycle;
 }
 %
 % adding hook for users to customise %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
diff --git a/Master/texmf-dist/tex/latex/tikzlings/tikzlings-coatis.sty b/Master/texmf-dist/tex/latex/tikzlings/tikzlings-coatis.sty
index 80c2222b9b2..22b88d4c7d7 100644
--- a/Master/texmf-dist/tex/latex/tikzlings/tikzlings-coatis.sty
+++ b/Master/texmf-dist/tex/latex/tikzlings/tikzlings-coatis.sty
@@ -12,7 +12,7 @@
 % See http://www.latex-project.org/lppl.txt
 %
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-\ProvidesPackage{tikzlings-coatis}[2020/12/04 version v0.4 Drawing coatis in TikZ]
+\ProvidesPackage{tikzlings-coatis}[2021/03/17 version v0.5 Drawing coatis in TikZ]
 
 \RequirePackage{tikz}
 \RequirePackage{tikzlings-addons}
@@ -31,6 +31,7 @@
 \newif\ifcoati@threeD
 \newif\ifcoati@sideward
 \newif\ifcoati@back
+\newif\ifcoati@contour
 
 \tikzset{
   %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
@@ -47,6 +48,8 @@
   %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
   body/.code         = \def\coati@body{#1},
   body               = brown!50!darkgray!97!yellow,
+  eye/.code          = \def\coati@eye{#1},
+  eye                = \coati@body!50!black,   
   rotatehead/.code   = \def\coati@rotatehead{#1},
   rotate head/.forward to = /coati/rotatehead,
   rotatehead         = 0,
@@ -58,6 +61,10 @@
   3D/.code           = \coati@threeDtrue,  
   sideward/.code     = \coati@sidewardtrue,
   back/.code         = \coati@backtrue,  
+  contour/.code      = \coati@contourtrue
+                       \def\coati@contour{#1},
+  contour/.default   = black,  
+  outline/.forward to = /coati/contour,   
 }
 
 \def\coati@draw{%
@@ -81,14 +88,18 @@
 %
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 % 
-% switch between 2D and 3D, from
+% switch between 2D, 3D and contours, from
 % https://chat.stackexchange.com/transcript/message/45991801#45991801
 %
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 \ifcoati@threeD
   \def\coati@part@draw[##1]{\shade[ball color=##1]}
 \else
-  \def\coati@part@draw[##1]{\fill[##1]}
+  \ifcoati@contour
+    \def\coati@part@draw[##1]{\draw[##1,\coati@contour,fill=white,line width=\scalingfactor*0.4pt]}
+  \else
+    \def\coati@part@draw[##1]{\fill[##1]}
+  \fi
 \fi
 %
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
@@ -163,8 +174,8 @@
   %
   % Eyes %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
   \ifcoati@back\else
-    \coati@part@draw[\coati@body!50!black] (0.007, 1.624) ellipse[x radius=0.04, y radius=0.06];
-    \coati@part@draw[\coati@body!50!black] (-0.38, 1.865) ellipse[x radius=0.035, y radius=0.055];
+    \coati@part@draw[\coati@eye] (0.007, 1.624) ellipse[x radius=0.04, y radius=0.06];
+    \coati@part@draw[\coati@eye] (-0.38, 1.865) ellipse[x radius=0.035, y radius=0.055];
   \fi
   %
   % Right Ear %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
@@ -195,8 +206,8 @@
   %
   % Eyes %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
   \ifcoati@back\else
-    \coati@part@draw[\coati@body!50!black] (0.23, 1.62) circle[radius=0.05];
-    \coati@part@draw[\coati@body!50!black] (-0.23, 1.62) circle[radius=0.05];
+    \coati@part@draw[\coati@eye] (0.23, 1.62) circle[radius=0.05];
+    \coati@part@draw[\coati@eye] (-0.23, 1.62) circle[radius=0.05];
   \fi
   %
   % Ears %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
diff --git a/Master/texmf-dist/tex/latex/tikzlings/tikzlings-hippos.sty b/Master/texmf-dist/tex/latex/tikzlings/tikzlings-hippos.sty
index f6e508493ce..504dc2eea27 100644
--- a/Master/texmf-dist/tex/latex/tikzlings/tikzlings-hippos.sty
+++ b/Master/texmf-dist/tex/latex/tikzlings/tikzlings-hippos.sty
@@ -12,7 +12,7 @@
 % See http://www.latex-project.org/lppl.txt
 %
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-\ProvidesPackage{tikzlings-hippos}[2020/12/04 version v0.4 Drawing hippos in TikZ]
+\ProvidesPackage{tikzlings-hippos}[2021/03/17 version v0.5 Drawing hippos in TikZ]
 
 \RequirePackage{tikz}
 \RequirePackage{tikzlings-addons}
@@ -30,6 +30,7 @@
 
 \newif\ifhippo@threeD
 \newif\ifhippo@back
+\newif\ifhippo@contour
 
 \tikzset{
   %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
@@ -46,6 +47,10 @@
   %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
   body/.code         = \def\hippo@body{#1},
   body               = gray,
+  eye/.code          = \def\hippo@eye{#1},
+  eye                = white,   
+  pupil/.code        = \def\hippo@pupil{#1},
+  pupil              = black,  
   toes/.code         = \def\hippo@toes{#1},
   toes               = \hippo@body!55!white,
   %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
@@ -55,6 +60,10 @@
   %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
   3D/.code           = \hippo@threeDtrue, 
   back/.code         = \hippo@backtrue,
+  contour/.code      = \hippo@contourtrue
+                       \def\hippo@contour{#1},
+  contour/.default   = black,  
+  outline/.forward to = /hippo/contour,   
 }
 
 \def\hippo@draw{%
@@ -78,14 +87,18 @@
 %
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 % 
-% switch between 2D and 3D, from
+% switch between 2D, 3D and contours, from
 % https://chat.stackexchange.com/transcript/message/45991801#45991801
 %
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 \ifhippo@threeD
   \def\hippo@part@draw[##1]{\shade[ball color=##1]}
 \else
-  \def\hippo@part@draw[##1]{\fill[##1]}
+  \ifhippo@contour
+    \def\hippo@part@draw[##1]{\draw[##1,\hippo@contour,fill=white,line width=\scalingfactor*0.4pt]}
+  \else
+    \def\hippo@part@draw[##1]{\fill[##1]}
+  \fi
 \fi
 %
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
@@ -136,10 +149,17 @@
 \ifhippo@back\else
 %
 % Eyes %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-\fill[white] (-0.11, 1.83) ellipse[x radius=0.08, y radius=0.12];
-\fill[white] (0.11, 1.83) ellipse[x radius=0.08, y radius=0.12];
-\fill[black] (-0.105, 1.78) ellipse[x radius=0.04, y radius=0.07];
-\fill[black] (0.105, 1.78) ellipse[x radius=0.04, y radius=0.07];
+\ifhippo@contour
+  \hippo@part@draw[\hippo@eye] (-0.11, 1.83) ellipse[x radius=0.08, y radius=0.12];
+  \hippo@part@draw[\hippo@eye] (0.11, 1.83) ellipse[x radius=0.08, y radius=0.12];
+  \hippo@part@draw[\hippo@pupil] (-0.105, 1.78) ellipse[x radius=0.04, y radius=0.07];
+  \hippo@part@draw[\hippo@pupil] (0.105, 1.78) ellipse[x radius=0.04, y radius=0.07];
+\else
+  \fill[\hippo@eye] (-0.11, 1.83) ellipse[x radius=0.08, y radius=0.12];
+  \fill[\hippo@eye] (0.11, 1.83) ellipse[x radius=0.08, y radius=0.12];
+  \fill[\hippo@pupil] (-0.105, 1.78) ellipse[x radius=0.04, y radius=0.07];
+  \fill[\hippo@pupil] (0.105, 1.78) ellipse[x radius=0.04, y radius=0.07];
+\fi
 %
 % Nose %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 \hippo@part@draw[\hippo@body!80!white] (0, 1.55) ellipse[x radius=0.42, y radius=0.2];
@@ -150,7 +170,11 @@
 \ifhippo@threeD
   \draw[black,line width=\scalingfactor*0.4pt] (0.125, 1.5) arc [start angle=-50, end angle=-130, radius=0.2] ;
 \else
-  \draw[\hippo@body!70!black,line width=\scalingfactor*0.4pt] (0.125, 1.5) arc [start angle=-50, end angle=-130, radius=0.2];
+  \ifhippo@contour
+    \draw[\hippo@contour,line width=\scalingfactor*0.4pt] (0.125, 1.5) arc [start angle=-50, end angle=-130, radius=0.2];
+  \else
+    \draw[\hippo@body!70!black,line width=\scalingfactor*0.4pt] (0.125, 1.5) arc [start angle=-50, end angle=-130, radius=0.2];
+  \fi
 \fi
 %
 % Feet %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
diff --git a/Master/texmf-dist/tex/latex/tikzlings/tikzlings-koalas.sty b/Master/texmf-dist/tex/latex/tikzlings/tikzlings-koalas.sty
index dca82444392..9e77fb14aed 100644
--- a/Master/texmf-dist/tex/latex/tikzlings/tikzlings-koalas.sty
+++ b/Master/texmf-dist/tex/latex/tikzlings/tikzlings-koalas.sty
@@ -12,7 +12,7 @@
 % See http://www.latex-project.org/lppl.txt
 %
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-\ProvidesPackage{tikzlings-koalas}[2020/12/04 version v0.4 Drawing koalas in TikZ]
+\ProvidesPackage{tikzlings-koalas}[2021/03/17 version v0.5 Drawing koalas in TikZ]
 
 \RequirePackage{tikz}
 \RequirePackage{tikzlings-addons}
@@ -37,6 +37,7 @@
 \newif\ifkoala@sleeping
 \newif\ifkoala@threeD
 \newif\ifkoala@back
+\newif\ifkoala@contour
 
 \tikzset{
   %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
@@ -53,6 +54,8 @@
   %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
   body/.code         = \def\koala@body{#1},
   body               = gray!75!white,
+  eye/.code          = \def\koala@eye{#1},
+  eye                = black,   
   %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
   %
   % options
@@ -62,6 +65,10 @@
   sleeping/.code     = \koala@sleepingtrue, 
   3D/.code           = \koala@threeDtrue,  
   back/.code         = \koala@backtrue,  
+  contour/.code      = \koala@contourtrue
+                       \def\koala@contour{#1},
+  contour/.default   = black,  
+  outline/.forward to = /koala/contour,   
 }
 
 \def\koala@draw{%
@@ -85,14 +92,18 @@
 %
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 % 
-% switch between 2D and 3D, from
+% switch between 2D, 3D and contours, from
 % https://chat.stackexchange.com/transcript/message/45991801#45991801
 %
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 \ifkoala@threeD
   \def\koala@part@draw[##1]{\shade[ball color=##1]}
 \else
-  \def\koala@part@draw[##1]{\fill[##1]}
+  \ifkoala@contour
+    \def\koala@part@draw[##1]{\draw[##1,\koala@contour,fill=white,line width=\scalingfactor*0.4pt]}
+  \else
+    \def\koala@part@draw[##1]{\fill[##1]}
+  \fi
 \fi
 %
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
@@ -159,8 +170,8 @@
   \fill[\koala@body!50!black, even odd rule] (0.3331, 1.741) ..  controls (0.3331, 1.685) and (0.1737, 1.685) .. (0.1737, 1.741) .. controls (0.1737, 1.848) and (0.3331, 1.848) .. (0.3331, 1.741) -- cycle (0.328, 1.741) .. controls   (0.323, 1.705) and   (0.184, 1.705) .. (0.179, 1.741) .. controls   (0.184, 1.843) and   (0.323, 1.843) .. (0.328, 1.741) -- cycle;
   \fill[\koala@body!50!black, even odd rule] (-0.3331, 1.741) ..  controls (-0.3331, 1.685) and (-0.1737, 1.685) .. (-0.1737, 1.741) .. controls (-0.1737, 1.848) and (-0.3331, 1.848) .. (-0.3331, 1.741) -- cycle   (-0.328, 1.741) .. controls     (-0.323, 1.705) and     (-0.184, 1.705) ..     (-0.179, 1.741) .. controls (-0.184, 1.843) and (-0.323, 1.843) .. (-0.328, 1.741) -- cycle;
 \else
-  \koala@part@draw[black] (-0.255, 1.74) circle[radius=0.08]; 
-  \koala@part@draw[black] (0.255, 1.74) circle[radius=0.08]; 
+  \koala@part@draw[\koala@eye] (-0.255, 1.74) circle[radius=0.08]; 
+  \koala@part@draw[\koala@eye] (0.255, 1.74) circle[radius=0.08]; 
   \fill[white] (-0.27, 1.76) circle[radius=0.015]; 
   \fill[white] (0.24, 1.76) circle[radius=0.015]; 
 \fi
@@ -168,8 +179,12 @@
 % Mouth %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 \ifkoala@threeD
   \draw[black,line width=\scalingfactor*0.4pt] (0.115, 1.39) arc [start angle=-40, end angle=-140, radius=0.16];
-\else   
-  \draw[\koala@body!40!black,line width=\scalingfactor*0.4pt] (0.115, 1.39) arc [start angle=-40, end angle=-140, radius=0.16];
+\else  
+  \ifkoala@contour
+    \draw[\koala@contour,line width=\scalingfactor*0.4pt] (0.115, 1.39) arc [start angle=-40, end angle=-140, radius=0.16];
+  \else 
+    \draw[\koala@body!40!black,line width=\scalingfactor*0.4pt] (0.115, 1.39) arc [start angle=-40, end angle=-140, radius=0.16];
+  \fi
 \fi
 %
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
@@ -180,8 +195,13 @@
 %
 % Blushed %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 \ifkoala@blush
-  \fill[red,path fading=koala@blush] (-0.3, 1.52) circle[radius=0.1]; 
-  \fill[red,path fading=koala@blush] (0.3, 1.52) circle[radius=0.1];
+  \ifkoala@contour
+    \fill[\koala@contour,path fading=koala@blush] (-0.3, 1.52) circle[radius=0.1]; 
+    \fill[\koala@contour,path fading=koala@blush] (0.3, 1.52) circle[radius=0.1];
+  \else
+    \fill[red,path fading=koala@blush] (-0.3, 1.52) circle[radius=0.1]; 
+    \fill[red,path fading=koala@blush] (0.3, 1.52) circle[radius=0.1];  
+  \fi
 \fi
 %
 \fi
diff --git a/Master/texmf-dist/tex/latex/tikzlings/tikzlings-list.sty b/Master/texmf-dist/tex/latex/tikzlings/tikzlings-list.sty
new file mode 100644
index 00000000000..b9f3fdec22b
--- /dev/null
+++ b/Master/texmf-dist/tex/latex/tikzlings/tikzlings-list.sty
@@ -0,0 +1,28 @@
+\ProvidesPackage{tikzlings-list}[2021/03/17 version v0.5 Helper package for the tikzlings]
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+% List of all TikZlings
+%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+\def\tikzling@list{
+  anteater/anteaters,
+  bear/bears,
+  bee/bees,
+  cat/cats,
+  coati/coatis,
+  hippo/hippos,
+  koala/koalas,
+  marmot/marmots,
+  mouse/mice,
+  moles/moles,
+  owl/owls,
+  panda/pandas,
+  penguin/penguins,
+  pig/pigs,
+  rhino/rhinos,
+  sheep/sheep,
+  sloth/sloths,
+  snowman/snowmans,
+  squirrel/squirrels%
+}
diff --git a/Master/texmf-dist/tex/latex/tikzlings/tikzlings-marmots.sty b/Master/texmf-dist/tex/latex/tikzlings/tikzlings-marmots.sty
index 0ec3eebb1c5..dc46283d8e9 100644
--- a/Master/texmf-dist/tex/latex/tikzlings/tikzlings-marmots.sty
+++ b/Master/texmf-dist/tex/latex/tikzlings/tikzlings-marmots.sty
@@ -12,7 +12,7 @@
 % See http://www.latex-project.org/lppl.txt
 %
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-\ProvidesPackage{tikzlings-marmots}[2020/12/04 version v0.4 Drawing marmots in TikZ]
+\ProvidesPackage{tikzlings-marmots}[2021/03/17 version v0.5 Drawing marmots in TikZ]
 
 \RequirePackage{tikz}
 \RequirePackage{tikzlings-addons}
@@ -59,6 +59,7 @@
 \newif\ifmarmot@leftstep
 \newif\ifmarmot@rightstep
 \newif\ifmarmot@back
+\newif\ifmarmot@contour
 
 \tikzset{
   %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
@@ -75,6 +76,8 @@
   %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
   body/.code         = \def\marmot@body{#1},
   body               = brown,
+  eye/.code          = \def\marmot@eye{#1},
+  eye                = \marmot@body!50!black,   
   %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
   %
   % options
@@ -96,6 +99,10 @@
   rightstep/.code    = \marmot@rightsteptrue,
   right step/.forward to = /marmot/rightstep,  
   back/.code         = \marmot@backtrue,  
+  contour/.code      = \marmot@contourtrue
+                       \def\marmot@contour{#1},
+  contour/.default   = black,  
+  outline/.forward to = /marmot/contour,   
 }
 
 \def\marmot@draw{%
@@ -119,14 +126,18 @@
 %
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 % 
-% switch between 2D and 3D, from
+% switch between 2D, 3D and contours, from
 % https://chat.stackexchange.com/transcript/message/45991801#45991801
 %
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 \ifmarmot@threeD
   \def\marmot@part@draw[##1]{\shade[ball color=##1]}
 \else
-  \def\marmot@part@draw[##1]{\fill[##1]}
+  \ifmarmot@contour
+    \def\marmot@part@draw[##1]{\draw[##1,\marmot@contour,fill=white,line width=\scalingfactor*0.4pt]}
+  \else
+    \def\marmot@part@draw[##1]{\fill[##1]}
+  \fi
 \fi
 %
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
@@ -210,11 +221,15 @@
 \marmot@part@draw[\marmot@body!50!black] (0,1.6) circle[radius=0.08];
 %
 % Eyes %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-\marmot@part@draw[\marmot@body!50!black] (-0.155,1.77) circle[radius=0.05]; 
-\marmot@part@draw[\marmot@body!50!black] (0.155,1.77) circle[radius=0.05]; 
+\marmot@part@draw[\marmot@eye] (-0.155,1.77) circle[radius=0.05]; 
+\marmot@part@draw[\marmot@eye] (0.155,1.77) circle[radius=0.05]; 
 %
 % Mouth %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-\fill[\marmot@body!50!black] (0.145,1.51) arc [start angle=-20, end angle=-160, radius=0.16] -- (-0.14,1.51) -- (-0.14,1.51) arc [start angle=-160, end angle=-20, radius=0.144] -- cycle ;
+\ifmarmot@contour
+  \fill[\marmot@contour] (0.145,1.51) arc [start angle=-20, end angle=-160, radius=0.16] -- (-0.14,1.51) -- (-0.14,1.51) arc [start angle=-160, end angle=-20, radius=0.144] -- cycle ;
+\else
+  \fill[\marmot@body!50!black] (0.145,1.51) arc [start angle=-20, end angle=-160, radius=0.16] -- (-0.14,1.51) -- (-0.14,1.51) arc [start angle=-160, end angle=-20, radius=0.144] -- cycle ;
+\fi
 %
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 %
@@ -224,8 +239,13 @@
 %
 % Blushed %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 \ifmarmot@blush
-  \fill[red,path fading=marmot@blush] (-0.295,1.6) circle[radius=0.1]; 
-  \fill[red,path fading=marmot@blush] (0.295,1.6) circle[radius=0.1]; 
+  \ifmarmot@contour
+    \fill[\marmot@contour,path fading=marmot@blush] (-0.295,1.6) circle[radius=0.1]; 
+    \fill[\marmot@contour,path fading=marmot@blush] (0.295,1.6) circle[radius=0.1];   
+  \else
+    \fill[red,path fading=marmot@blush] (-0.295,1.6) circle[radius=0.1]; 
+    \fill[red,path fading=marmot@blush] (0.295,1.6) circle[radius=0.1]; 
+  \fi
 \fi
 %
 % Wiskers %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
diff --git a/Master/texmf-dist/tex/latex/tikzlings/tikzlings-mice.sty b/Master/texmf-dist/tex/latex/tikzlings/tikzlings-mice.sty
index c1a0ec4f124..96cca7f2f74 100644
--- a/Master/texmf-dist/tex/latex/tikzlings/tikzlings-mice.sty
+++ b/Master/texmf-dist/tex/latex/tikzlings/tikzlings-mice.sty
@@ -12,7 +12,7 @@
 % See http://www.latex-project.org/lppl.txt
 %
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-\ProvidesPackage{tikzlings-mice}[2020/12/04 version v0.4 Drawing mice in TikZ]
+\ProvidesPackage{tikzlings-mice}[2021/03/17 version v0.5 Drawing mice in TikZ]
 
 \RequirePackage{tikz}
 \RequirePackage{tikzlings-addons}
@@ -34,6 +34,7 @@
 \newif\ifmouse@leftstep
 \newif\ifmouse@rightstep
 \newif\ifmouse@back
+\newif\ifmouse@contour
 
 \tikzset{
   %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
@@ -50,6 +51,8 @@
   %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
   body/.code         = \def\mouse@body{#1},
   body               = gray!90!white,
+  eye/.code          = \def\mouse@eye{#1},
+  eye                = \mouse@body!50!black,   
   %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
   %
   % options
@@ -65,6 +68,10 @@
   rightstep/.code    = \mouse@rightsteptrue,
   right step/.forward to = /mouse/rightstep,    
   back/.code         = \mouse@backtrue,  
+  contour/.code      = \mouse@contourtrue
+                       \def\mouse@contour{#1},
+  contour/.default   = black,  
+  outline/.forward to = /mouse/contour,   
 }
 
 \def\mouse@draw{%
@@ -88,14 +95,18 @@
 %
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 % 
-% switch between 2D and 3D, from
+% switch between 2D, 3D and contours, from
 % https://chat.stackexchange.com/transcript/message/45991801#45991801
 %
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 \ifmouse@threeD
   \def\mouse@part@draw[##1]{\shade[ball color=##1]}
 \else
-  \def\mouse@part@draw[##1]{\fill[##1]}
+  \ifmouse@contour
+    \def\mouse@part@draw[##1]{\draw[##1,\mouse@contour,fill=white,line width=\scalingfactor*0.4pt]}
+  \else
+    \def\mouse@part@draw[##1]{\fill[##1]}
+  \fi
 \fi
 %
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
@@ -165,19 +176,28 @@
 \mouse@part@draw[\mouse@body!65!white,rotate around={\mouse@rotatearms:(-0.47,1.15)}] (-0.47,0.93) ellipse[x radius=0.13, y radius=0.24];
 %
 % Wiskers %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-\fill[\mouse@body!50!black] (0.0788, 1.2046) .. controls (0.1658, 1.2199) and (0.2086, 1.1539) .. (0.2956, 1.1386) -- (0.2956, 1.1486) .. controls (0.2097, 1.1637) and (0.1648, 1.2197) .. (0.0788, 1.2046) -- cycle;
-\fill[\mouse@body!50!black] (-0.0788, 1.2046) .. controls (-0.1658, 1.2199) and (-0.2087, 1.1539) .. (-0.2956, 1.1386) -- (-0.2956, 1.1486) .. controls (-0.2097, 1.1637) and (-0.1648, 1.2197) .. (-0.0788, 1.2046) -- cycle;
-\fill[\mouse@body!50!black] (0.0752, 1.2181) .. controls (0.1583, 1.2483) and (0.2171, 1.2209) .. (0.3002, 1.1907) -- (0.3002, 1.2007) .. controls (0.2174, 1.2308) and (0.158, 1.2482) .. (0.0752, 1.2181) -- cycle;
-\fill[\mouse@body!50!black] (-0.0752, 1.2181) .. controls (-0.1583, 1.2483) and (-0.2171, 1.2209) .. (-0.3002, 1.1907) -- (-0.3002, 1.2007) .. controls (-0.2174, 1.2308) and (-0.158, 1.2482) .. (-0.0752, 1.2181) -- cycle;
-\fill[\mouse@body!50!black] (0.0671, 1.2343) .. controls (0.1414, 1.2825) and (0.2182, 1.3064) .. (0.2925, 1.2582) -- (0.2925, 1.2682) .. controls (0.2179, 1.3166) and (0.1417, 1.2827) .. (0.0671, 1.2343) -- cycle;
-\fill[\mouse@body!50!black] (-0.0671, 1.2343) .. controls (-0.1414, 1.2825) and (-0.2182, 1.3064) .. (-0.2925, 1.2582) -- (-0.2925, 1.2682) .. controls (-0.2179, 1.3166) and (-0.1417, 1.2827) .. (-0.0671, 1.2343) -- cycle;
+\ifmouse@contour
+  \fill[\mouse@contour] (0.0788, 1.2046) .. controls (0.1658, 1.2199) and (0.2086, 1.1539) .. (0.2956, 1.1386) -- (0.2956, 1.1486) .. controls (0.2097, 1.1637) and (0.1648, 1.2197) .. (0.0788, 1.2046) -- cycle;
+  \fill[\mouse@contour] (-0.0788, 1.2046) .. controls (-0.1658, 1.2199) and (-0.2087, 1.1539) .. (-0.2956, 1.1386) -- (-0.2956, 1.1486) .. controls (-0.2097, 1.1637) and (-0.1648, 1.2197) .. (-0.0788, 1.2046) -- cycle;
+  \fill[\mouse@contour] (0.0752, 1.2181) .. controls (0.1583, 1.2483) and (0.2171, 1.2209) .. (0.3002, 1.1907) -- (0.3002, 1.2007) .. controls (0.2174, 1.2308) and (0.158, 1.2482) .. (0.0752, 1.2181) -- cycle;
+  \fill[\mouse@contour] (-0.0752, 1.2181) .. controls (-0.1583, 1.2483) and (-0.2171, 1.2209) .. (-0.3002, 1.1907) -- (-0.3002, 1.2007) .. controls (-0.2174, 1.2308) and (-0.158, 1.2482) .. (-0.0752, 1.2181) -- cycle;
+  \fill[\mouse@contour] (0.0671, 1.2343) .. controls (0.1414, 1.2825) and (0.2182, 1.3064) .. (0.2925, 1.2582) -- (0.2925, 1.2682) .. controls (0.2179, 1.3166) and (0.1417, 1.2827) .. (0.0671, 1.2343) -- cycle;
+  \fill[\mouse@contour] (-0.0671, 1.2343) .. controls (-0.1414, 1.2825) and (-0.2182, 1.3064) .. (-0.2925, 1.2582) -- (-0.2925, 1.2682) .. controls (-0.2179, 1.3166) and (-0.1417, 1.2827) .. (-0.0671, 1.2343) -- cycle;
+\else
+  \fill[\mouse@body!50!black] (0.0788, 1.2046) .. controls (0.1658, 1.2199) and (0.2086, 1.1539) .. (0.2956, 1.1386) -- (0.2956, 1.1486) .. controls (0.2097, 1.1637) and (0.1648, 1.2197) .. (0.0788, 1.2046) -- cycle;
+  \fill[\mouse@body!50!black] (-0.0788, 1.2046) .. controls (-0.1658, 1.2199) and (-0.2087, 1.1539) .. (-0.2956, 1.1386) -- (-0.2956, 1.1486) .. controls (-0.2097, 1.1637) and (-0.1648, 1.2197) .. (-0.0788, 1.2046) -- cycle;
+  \fill[\mouse@body!50!black] (0.0752, 1.2181) .. controls (0.1583, 1.2483) and (0.2171, 1.2209) .. (0.3002, 1.1907) -- (0.3002, 1.2007) .. controls (0.2174, 1.2308) and (0.158, 1.2482) .. (0.0752, 1.2181) -- cycle;
+  \fill[\mouse@body!50!black] (-0.0752, 1.2181) .. controls (-0.1583, 1.2483) and (-0.2171, 1.2209) .. (-0.3002, 1.1907) -- (-0.3002, 1.2007) .. controls (-0.2174, 1.2308) and (-0.158, 1.2482) .. (-0.0752, 1.2181) -- cycle;
+  \fill[\mouse@body!50!black] (0.0671, 1.2343) .. controls (0.1414, 1.2825) and (0.2182, 1.3064) .. (0.2925, 1.2582) -- (0.2925, 1.2682) .. controls (0.2179, 1.3166) and (0.1417, 1.2827) .. (0.0671, 1.2343) -- cycle;
+  \fill[\mouse@body!50!black] (-0.0671, 1.2343) .. controls (-0.1414, 1.2825) and (-0.2182, 1.3064) .. (-0.2925, 1.2582) -- (-0.2925, 1.2682) .. controls (-0.2179, 1.3166) and (-0.1417, 1.2827) .. (-0.0671, 1.2343) -- cycle;
+\fi
 %
 % Nose %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 \mouse@part@draw[\mouse@body!50!black] (0, 1.248) circle[radius=0.09];
 %
 % Eyes %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-\mouse@part@draw[\mouse@body!50!black] (0.23, 1.68) circle[radius=0.05];
-\mouse@part@draw[\mouse@body!50!black] (-0.23, 1.68) circle[radius=0.05];
+\mouse@part@draw[\mouse@eye] (0.23, 1.68) circle[radius=0.05];
+\mouse@part@draw[\mouse@eye] (-0.23, 1.68) circle[radius=0.05];
 %
 \fi
 % adding hook for users to customise %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
diff --git a/Master/texmf-dist/tex/latex/tikzlings/tikzlings-moles.sty b/Master/texmf-dist/tex/latex/tikzlings/tikzlings-moles.sty
index 7902a9cccda..4802444242e 100644
--- a/Master/texmf-dist/tex/latex/tikzlings/tikzlings-moles.sty
+++ b/Master/texmf-dist/tex/latex/tikzlings/tikzlings-moles.sty
@@ -12,15 +12,15 @@
 % See http://www.latex-project.org/lppl.txt
 %
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-\ProvidesPackage{tikzlings-moles}[2020/12/04 version v0.4 Drawing moles in TikZ]
+\ProvidesPackage{tikzlings-moles}[2021/03/17 version v0.5 Drawing moles in TikZ]
 
 \RequirePackage{tikz}
 \RequirePackage{tikzlings-addons}
 
 \newcommand*{\moles}[1][]{%
   \begin{scope}%
-    \tikzset{/mole/.cd,#1}%
-    \mole@draw%
+    \tikzset{/moles/.cd,#1}%
+    \moles@draw%
   \end{scope}%
   \thing[#1]%
   % adding hook for users to customise %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
@@ -29,8 +29,9 @@
   %   
 }
 
-\newif\ifmole@threeD
-\newif\ifmole@back
+\newif\ifmoles@threeD
+\newif\ifmoles@back
+\newif\ifmoles@contour
 
 \tikzset{
   %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
@@ -38,31 +39,38 @@
   % Pass unknown keys on to tikz
   %
   %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-  /mole/.search also={/tikz,/pgf,/thing},
-  /mole/.cd,
+  /moles/.search also={/tikz,/pgf,/thing},
+  /moles/.cd,
   %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
   %
   % body
   %
   %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-  body/.code         = \def\mole@body{#1},
+  body/.code         = \def\moles@body{#1},
   body               = gray,
-  feet/.code         = \def\mole@feet{#1},
+  eye/.code          = \def\moles@eye{#1},
+  eye                = \moles@body!60!black,   
+  feet/.code         = \def\moles@feet{#1},
   feet               = red!20!white!50!brown,
-  hands/.code        = \def\mole@hands{#1},
+  hands/.code        = \def\moles@hands{#1},
   hands              = red!20!white!50!brown,  
-  muzzle/.code       = \def\mole@muzzle{#1},
+  muzzle/.code       = \def\moles@muzzle{#1},
   muzzle             = red!20!white!50!brown, 
   %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
   %
   % options
   %
   %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-  3D/.code           = \mole@threeDtrue,  
-  back/.code         = \mole@backtrue,       
+  3D/.code           = \moles@threeDtrue,  
+  back/.code         = \moles@backtrue,  
+  contour/.code      = \moles@contourtrue
+                       \def\moles@contour{#1}
+                       \def\moles@eye{#1},
+  contour/.default   = black,  
+  outline/.forward to = /moles/contour,        
 }
 
-\def\mole@draw{%
+\def\moles@draw{%
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 %
 % minimal bounding box size 
@@ -83,14 +91,18 @@
 %
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 % 
-% switch between 2D and 3D, from
+% switch between 2D, 3D and contours, from
 % https://chat.stackexchange.com/transcript/message/45991801#45991801
 %
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-\ifmole@threeD
-  \def\mole@part@draw[##1]{\shade[ball color=##1]}
+\ifmoles@threeD
+  \def\moles@part@draw[##1]{\shade[ball color=##1]}
 \else
-  \def\mole@part@draw[##1]{\fill[##1]}
+  \ifmoles@contour
+    \def\moles@part@draw[##1]{\draw[##1,\moles@contour,fill=white,line width=\scalingfactor*0.4pt]}
+  \else
+    \def\moles@part@draw[##1]{\fill[##1]}
+  \fi
 \fi
 %
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
@@ -104,28 +116,28 @@
 \csname tikzlinghookbackground\endcsname
 %
 % Feet %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-\mole@part@draw[\mole@feet] (-0.255,0.2) ellipse[x radius=0.23, y radius=0.09];  
-\mole@part@draw[\mole@feet] (0.255,0.2) ellipse[x radius=0.23, y radius=0.09]; 
+\moles@part@draw[\moles@feet] (-0.255,0.2) ellipse[x radius=0.23, y radius=0.09];  
+\moles@part@draw[\moles@feet] (0.255,0.2) ellipse[x radius=0.23, y radius=0.09]; 
 %
 % Tail %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-\ifmole@back\else
-  \mole@part@draw[\mole@body] (0.8856, 0.6504) .. controls (0.8656, 0.3803) and (0.0267, 0.2202) .. (0.0167, 0.4203) .. controls (-0.0033, 0.5404) and (0.1104, 0.4397) .. (0.3951, 0.4803) .. controls (0.6557, 0.5175) and (0.8856, 0.7005) .. (0.8856, 0.6504);
+\ifmoles@back\else
+  \moles@part@draw[\moles@body] (0.8856, 0.6504) .. controls (0.8656, 0.3803) and (0.0267, 0.2202) .. (0.0167, 0.4203) .. controls (-0.0033, 0.5404) and (0.1104, 0.4397) .. (0.3951, 0.4803) .. controls (0.6557, 0.5175) and (0.8856, 0.7005) .. (0.8856, 0.6504);
 \fi
 %
 % Hair %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-\mole@part@draw[\mole@body] (-0.09, 2.06) .. controls (-0.09, 2.06) and (-0.13, 2.25) .. (-0.07, 2.27) .. controls (-0.09, 2.13) and (0.04, 2.08) .. (0.04, 2.08) .. controls (0.04, 2.08) and (0.02, 2.20) .. (0.06, 2.21) .. controls (0.06, 2.11) and (0.13, 2.08) .. (0.13, 2.08) -- cycle;
+\moles@part@draw[\moles@body] (-0.09, 2.06) .. controls (-0.09, 2.06) and (-0.13, 2.25) .. (-0.07, 2.27) .. controls (-0.09, 2.13) and (0.04, 2.08) .. (0.04, 2.08) .. controls (0.04, 2.08) and (0.02, 2.20) .. (0.06, 2.21) .. controls (0.06, 2.11) and (0.13, 2.08) .. (0.13, 2.08) -- cycle;
 %
 % Body %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-\mole@part@draw[\mole@body] (0.595, 0.92) .. controls (0.595, 0.26) and (0.355, 0.18) .. (0, 0.18) .. controls (-0.355, 0.18) and (-0.595, 0.26) .. (-0.595, 0.92) .. controls (-0.605, 1.58) and (-0.335, 2.11) .. (0, 2.11) .. controls (0.335, 2.11) and (0.605, 1.58) .. (0.595, 0.92) -- cycle;
+\moles@part@draw[\moles@body] (0.595, 0.92) .. controls (0.595, 0.26) and (0.355, 0.18) .. (0, 0.18) .. controls (-0.355, 0.18) and (-0.595, 0.26) .. (-0.595, 0.92) .. controls (-0.605, 1.58) and (-0.335, 2.11) .. (0, 2.11) .. controls (0.335, 2.11) and (0.605, 1.58) .. (0.595, 0.92) -- cycle;
 %
 % Tail if back %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-\ifmole@back
-  \mole@part@draw[\mole@body] (0.8856, 0.6504) .. controls (0.8656, 0.3803) and (0.0267, 0.2202) .. (0.0167, 0.4203) .. controls (-0.0033, 0.5404) and (0.1104, 0.4397) .. (0.3951, 0.4803) .. controls (0.6557, 0.5175) and (0.8856, 0.7005) .. (0.8856, 0.6504) -- cycle;
+\ifmoles@back
+  \moles@part@draw[\moles@body] (0.8856, 0.6504) .. controls (0.8656, 0.3803) and (0.0267, 0.2202) .. (0.0167, 0.4203) .. controls (-0.0033, 0.5404) and (0.1104, 0.4397) .. (0.3951, 0.4803) .. controls (0.6557, 0.5175) and (0.8856, 0.7005) .. (0.8856, 0.6504) -- cycle;
 \fi
 %
 % Belly %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-\ifmole@back\else
-  \mole@part@draw[\mole@body!50!white] (0.425, 0.71) .. controls (0.425, 0.41) and (0.245, 0.37) .. (0, 0.37) .. controls (-0.245, 0.37) and (-0.425, 0.41) .. (-0.425, 0.71) .. controls (-0.425, 1.01) and (-0.225, 1.26) .. (0, 1.26) .. controls (0.225, 1.26) and (0.425, 1.01) .. (0.425, 0.71) -- cycle;
+\ifmoles@back\else
+  \moles@part@draw[\moles@body!50!white] (0.425, 0.71) .. controls (0.425, 0.41) and (0.245, 0.37) .. (0, 0.37) .. controls (-0.245, 0.37) and (-0.425, 0.41) .. (-0.425, 0.71) .. controls (-0.425, 1.01) and (-0.225, 1.26) .. (0, 1.26) .. controls (0.225, 1.26) and (0.425, 1.01) .. (0.425, 0.71) -- cycle;
 \fi
 %
 % adding hook for users to customise %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
@@ -133,35 +145,44 @@
 \csname tikzlinghookbelly\endcsname
 %
 % Show details only from the front %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-\ifmole@back\else
+\ifmoles@back\else
 %
 % Arms %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-\mole@part@draw[\mole@body] (0.37,0.86) ellipse[x radius=0.27, y radius=0.13, rotate=70];
-\mole@part@draw[\mole@body] (-0.37,0.86) ellipse[x radius=0.27, y radius=0.13, rotate=-70];
+\moles@part@draw[\moles@body] (0.37,0.86) ellipse[x radius=0.27, y radius=0.13, rotate=70];
+\moles@part@draw[\moles@body] (-0.37,0.86) ellipse[x radius=0.27, y radius=0.13, rotate=-70];
 %
 % Hands %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-\fill[white] (-0.37,0.6) -- (-0.32,0.53) -- (-0.3,0.6) -- (-0.23,0.55) -- (-0.23,0.64) -- (-0.16,0.59) -- (-0.18,0.67) -- cycle;
-\fill[white] (0.37,0.6) -- (0.32,0.53) -- (0.3,0.6) -- (0.23,0.55) -- (0.23,0.64) -- (0.16,0.59) -- (0.18,0.67) -- cycle;
-\mole@part@draw[\mole@hands] (0.285,0.65) ellipse[x radius=0.08, y radius=0.13, rotate=70];
-\mole@part@draw[\mole@hands] (-0.285,0.65) ellipse[x radius=0.08, y radius=0.13, rotate=-70];
+\ifmoles@contour
+  \moles@part@draw[] (-0.37,0.6) -- (-0.32,0.53) -- (-0.3,0.6) -- (-0.23,0.55) -- (-0.23,0.64) -- (-0.16,0.59) -- (-0.18,0.67) -- cycle;
+  \moles@part@draw[] (0.37,0.6) -- (0.32,0.53) -- (0.3,0.6) -- (0.23,0.55) -- (0.23,0.64) -- (0.16,0.59) -- (0.18,0.67) -- cycle;
+\else
+  \fill[white] (-0.37,0.6) -- (-0.32,0.53) -- (-0.3,0.6) -- (-0.23,0.55) -- (-0.23,0.64) -- (-0.16,0.59) -- (-0.18,0.67) -- cycle;
+  \fill[white] (0.37,0.6) -- (0.32,0.53) -- (0.3,0.6) -- (0.23,0.55) -- (0.23,0.64) -- (0.16,0.59) -- (0.18,0.67) -- cycle;
+\fi
+\moles@part@draw[\moles@hands] (0.285,0.65) ellipse[x radius=0.08, y radius=0.13, rotate=70];
+\moles@part@draw[\moles@hands] (-0.285,0.65) ellipse[x radius=0.08, y radius=0.13, rotate=-70];
 %
 % Muzzle %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-\mole@part@draw[\mole@muzzle] ( 0.22, 1.46) .. controls ( 0.22, 1.50) and ( 0.22, 1.53) .. ( 0.17, 1.56) .. controls ( 0.11, 1.58) and ( 0.05, 1.66) .. ( 0.00, 1.66) .. controls (-0.05, 1.66) and (-0.11, 1.58) .. (-0.17, 1.56) .. controls (-0.22, 1.53) and (-0.22, 1.50) .. (-0.22, 1.46) .. controls (-0.22, 1.39) and (-0.14, 1.33) .. ( 0.00, 1.33) .. controls ( 0.14, 1.33) and ( 0.22, 1.39) .. ( 0.22, 1.46) -- cycle;
+\moles@part@draw[\moles@muzzle] ( 0.22, 1.46) .. controls ( 0.22, 1.50) and ( 0.22, 1.53) .. ( 0.17, 1.56) .. controls ( 0.11, 1.58) and ( 0.05, 1.66) .. ( 0.00, 1.66) .. controls (-0.05, 1.66) and (-0.11, 1.58) .. (-0.17, 1.56) .. controls (-0.22, 1.53) and (-0.22, 1.50) .. (-0.22, 1.46) .. controls (-0.22, 1.39) and (-0.14, 1.33) .. ( 0.00, 1.33) .. controls ( 0.14, 1.33) and ( 0.22, 1.39) .. ( 0.22, 1.46) -- cycle;
 %
 % Nose %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-\mole@part@draw[\mole@body!60!black] (0,1.67) circle[radius=0.055];
+\moles@part@draw[\moles@body!60!black] (0,1.67) circle[radius=0.055];
 %
 % Eyes %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-\ifmole@threeD
-  \fill[\mole@body!60!black] (-0.165,1.79) ellipse[x radius=0.055, y radius=0.015, rotate=-15]; 
-  \fill[\mole@body!30!black] (0.165,1.79) ellipse[x radius=0.055, y radius=0.015, rotate=15]; 
+\ifmoles@threeD
+  \fill[\moles@eye] (-0.165,1.79) ellipse[x radius=0.055, y radius=0.015, rotate=-15]; 
+  \fill[\moles@eye!50!black] (0.165,1.79) ellipse[x radius=0.055, y radius=0.015, rotate=15]; 
 \else   
-  \fill[\mole@body!60!black] (-0.165,1.79) ellipse[x radius=0.055, y radius=0.015, rotate=-15]; 
-  \fill[\mole@body!60!black] (0.165,1.79) ellipse[x radius=0.055, y radius=0.015, rotate=15]; 
+  \fill[\moles@eye] (-0.165,1.79) ellipse[x radius=0.055, y radius=0.015, rotate=-15]; 
+  \fill[\moles@eye] (0.165,1.79) ellipse[x radius=0.055, y radius=0.015, rotate=15]; 
 \fi
 %
 % Mouth %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-\draw[\mole@body!60!black, line width=\scalingfactor*0.4pt] (0.145,1.51) arc [start angle=-20, end angle=-160, radius=0.16] ;
+\ifmoles@contour
+  \draw[\moles@contour, line width=\scalingfactor*0.4pt] (0.145,1.51) arc [start angle=-20, end angle=-160, radius=0.16] ;
+\else
+  \draw[\moles@body!60!black, line width=\scalingfactor*0.4pt] (0.145,1.51) arc [start angle=-20, end angle=-160, radius=0.16] ;
+\fi
 %
 \fi
 % adding hook for users to customise %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
diff --git a/Master/texmf-dist/tex/latex/tikzlings/tikzlings-owls.sty b/Master/texmf-dist/tex/latex/tikzlings/tikzlings-owls.sty
index feebc6f2c6c..8955aff4192 100644
--- a/Master/texmf-dist/tex/latex/tikzlings/tikzlings-owls.sty
+++ b/Master/texmf-dist/tex/latex/tikzlings/tikzlings-owls.sty
@@ -12,7 +12,7 @@
 % See http://www.latex-project.org/lppl.txt
 %
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-\ProvidesPackage{tikzlings-owls}[2020/12/04 version v0.4 Draw owls in TikZ]
+\ProvidesPackage{tikzlings-owls}[2021/03/17 version v0.5 Draw owls in TikZ]
 
 \RequirePackage{tikz}
 \RequirePackage{tikzlings-addons}
@@ -31,6 +31,7 @@
 
 \newif\ifowl@threeD
 \newif\ifowl@back
+\newif\ifowl@contour
 
 \tikzset{
   %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
@@ -62,6 +63,10 @@
   %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
   3D/.code           = \owl@threeDtrue,
   back/.code         = \owl@backtrue,  
+  contour/.code      = \owl@contourtrue
+                       \def\owl@contour{#1},
+  contour/.default   = black,  
+  outline/.forward to = /owl/contour,   
 }
 
 \def\owl@draw{%
@@ -85,14 +90,18 @@
 %
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 % 
-% switch between 2D and 3D, from
+% switch between 2D, 3D and contours, from
 % https://chat.stackexchange.com/transcript/message/45991801#45991801
 %
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 \ifowl@threeD
   \def\owl@part@draw[##1]{\shade[ball color=##1]}
 \else
-  \def\owl@part@draw[##1]{\fill[##1]}
+  \ifowl@contour
+    \def\owl@part@draw[##1]{\draw[##1,\owl@contour,fill=white,line width=\scalingfactor*0.4pt]}
+  \else
+    \def\owl@part@draw[##1]{\fill[##1]}
+  \fi
 \fi
 %
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
@@ -139,9 +148,14 @@
 %
 % Eyes %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 \ifowl@back\else
-  \fill[\owl@eye] (-0.28, 1.6) circle[radius=0.22];
+  \ifowl@contour
+    \owl@part@draw[\owl@eye] (-0.28, 1.6) circle[radius=0.22];
+    \owl@part@draw[\owl@eye] (0.28, 1.6) circle[radius=0.22];
+  \else
+    \fill[\owl@eye] (-0.28, 1.6) circle[radius=0.22];
+    \fill[\owl@eye] (0.28, 1.6) circle[radius=0.22];
+  \fi
   \owl@part@draw[\owl@pupil]   (-0.28, 1.6) circle[radius=0.15];
-  \fill[\owl@eye] (0.28, 1.6) circle[radius=0.22];
   \owl@part@draw[\owl@pupil]   (0.28, 1.6) circle[radius=0.15];
   \owl@part@draw[white] (0.25, 1.64) circle[radius=0.03];
   \owl@part@draw[white] (-0.31, 1.64) circle[radius=0.03];
diff --git a/Master/texmf-dist/tex/latex/tikzlings/tikzlings-pandas.sty b/Master/texmf-dist/tex/latex/tikzlings/tikzlings-pandas.sty
index d410a514605..dd3862376e3 100644
--- a/Master/texmf-dist/tex/latex/tikzlings/tikzlings-pandas.sty
+++ b/Master/texmf-dist/tex/latex/tikzlings/tikzlings-pandas.sty
@@ -12,7 +12,7 @@
 % See http://www.latex-project.org/lppl.txt
 %
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-\ProvidesPackage{tikzlings-pandas}[2020/12/04 version v0.4 Drawing pandas in TikZ]
+\ProvidesPackage{tikzlings-pandas}[2021/03/17 version v0.5 Drawing pandas in TikZ]
 
 \RequirePackage{tikz}
 \RequirePackage{tikzlings-addons}
@@ -31,6 +31,7 @@
 
 \newif\ifpanda@threeD
 \newif\ifpanda@back
+\newif\ifpanda@contour
 
 \tikzset{
   %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
@@ -47,6 +48,10 @@
   %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
   body/.code         = \def\panda@body{#1},
   body               = white!90!black,
+  eye/.code          = \def\panda@eye{#1},
+  eye                = white, 
+  pupil/.code        = \def\panda@pupil{#1},
+  pupil              = black,    
   %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
   %
   % options
@@ -54,6 +59,10 @@
   %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
   3D/.code           = \panda@threeDtrue, 
   back/.code         = \panda@backtrue,  
+  contour/.code      = \panda@contourtrue
+                       \def\panda@contour{#1},
+  contour/.default   = black,  
+  outline/.forward to = /panda/contour,   
 }
 
 \def\panda@draw{%
@@ -77,14 +86,18 @@
 %
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 % 
-% switch between 2D and 3D, from
+% switch between 2D, 3D and contours, from
 % https://chat.stackexchange.com/transcript/message/45991801#45991801
 %
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 \ifpanda@threeD
   \def\panda@part@draw[##1]{\shade[ball color=##1]}
 \else
-  \def\panda@part@draw[##1]{\fill[##1]}
+  \ifpanda@contour
+    \def\panda@part@draw[##1]{\draw[##1,\panda@contour,fill=white,line width=\scalingfactor*0.4pt]}
+  \else
+    \def\panda@part@draw[##1]{\fill[##1]}
+  \fi
 \fi
 %
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
@@ -137,13 +150,17 @@
 % Eyes %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 \panda@part@draw[black] (0.3732, 1.6905) .. controls (0.3498, 1.767) and (0.2032, 1.8059) .. (0.0944, 1.7715) .. controls (-0.0145, 1.7371) and (0.173, 1.5479) .. (0.2508, 1.5443) .. controls (0.3286, 1.5407) and (0.3965, 1.614) .. (0.3732, 1.6905) -- cycle;
 \panda@part@draw[black] (-0.3732, 1.6905) .. controls (-0.3498, 1.767) and (-0.2032, 1.8059) .. (-0.0944, 1.7715) .. controls (0.0145, 1.7371) and (-0.173, 1.5479) .. (-0.2508, 1.5443) .. controls (-0.3286, 1.5407) and (-0.3965, 1.614) .. (-0.3732, 1.6905) -- cycle;
-\panda@part@draw[white] (-0.18, 1.7) circle[radius=0.05];
-\panda@part@draw[white] (0.18, 1.7) circle[radius=0.05];
-\panda@part@draw[black] (0.17, 1.695) circle[radius=0.02];
-\panda@part@draw[black] (-0.17, 1.695) circle[radius=0.02];
+\panda@part@draw[\panda@eye] (-0.18, 1.7) circle[radius=0.05];
+\panda@part@draw[\panda@eye] (0.18, 1.7) circle[radius=0.05];
+\panda@part@draw[\panda@pupil] (0.17, 1.695) circle[radius=0.02];
+\panda@part@draw[\panda@pupil] (-0.17, 1.695) circle[radius=0.02];
 %
 % Mouth %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-\draw[black,line width=\scalingfactor*0.2pt] (-0.16, 1.477) .. controls (-0.16, 1.477) and (-0.062, 1.37) .. (0, 1.506)  .. controls (0.062, 1.37) and (0.16, 1.477) .. (0.16, 1.477);
+\ifpanda@contour
+  \draw[\panda@contour,line width=\scalingfactor*0.2pt] (-0.16, 1.477) .. controls (-0.16, 1.477) and (-0.062, 1.37) .. (0, 1.506)  .. controls (0.062, 1.37) and (0.16, 1.477) .. (0.16, 1.477);
+\else
+  \draw[black,line width=\scalingfactor*0.2pt] (-0.16, 1.477) .. controls (-0.16, 1.477) and (-0.062, 1.37) .. (0, 1.506)  .. controls (0.062, 1.37) and (0.16, 1.477) .. (0.16, 1.477);
+\fi
 %
 % Nose %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 \panda@part@draw[black] (0,1.55) ellipse[x radius=0.07, y radius=0.04];
diff --git a/Master/texmf-dist/tex/latex/tikzlings/tikzlings-penguins.sty b/Master/texmf-dist/tex/latex/tikzlings/tikzlings-penguins.sty
index e69f4e87891..51c9d2bf362 100644
--- a/Master/texmf-dist/tex/latex/tikzlings/tikzlings-penguins.sty
+++ b/Master/texmf-dist/tex/latex/tikzlings/tikzlings-penguins.sty
@@ -12,7 +12,7 @@
 % See http://www.latex-project.org/lppl.txt
 %
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-\ProvidesPackage{tikzlings-penguins}[2020/12/04 version v0.4 Draw penguins in TikZ]
+\ProvidesPackage{tikzlings-penguins}[2021/03/17 version v0.5 Draw penguins in TikZ]
 
 \RequirePackage{tikz}
 \RequirePackage{tikzlings-addons}
@@ -31,6 +31,7 @@
 
 \newif\ifpenguin@threeD
 \newif\ifpenguin@back
+\newif\ifpenguin@contour
 
 \tikzset{
   %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
@@ -63,7 +64,11 @@
   %
   %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
   3D/.code           = \penguin@threeDtrue, 
-  back/.code         = \penguin@backtrue,  
+  back/.code         = \penguin@backtrue, 
+  contour/.code      = \penguin@contourtrue
+                       \def\penguin@contour{#1},
+  contour/.default   = black,  
+  outline/.forward to = /penguin/contour,    
 }
 
 \def\penguin@draw{%
@@ -87,14 +92,18 @@
 %
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 % 
-% switch between 2D and 3D, from
+% switch between 2D, 3D and contours, from
 % https://chat.stackexchange.com/transcript/message/45991801#45991801
 %
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 \ifpenguin@threeD
   \def\penguin@part@draw[##1]{\shade[ball color=##1]}
 \else
-  \def\penguin@part@draw[##1]{\fill[##1]}
+  \ifpenguin@contour
+    \def\penguin@part@draw[##1]{\draw[##1,\penguin@contour,fill=white,line width=\scalingfactor*0.4pt]}
+  \else
+    \def\penguin@part@draw[##1]{\fill[##1]}
+  \fi
 \fi
 %
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
@@ -141,10 +150,17 @@
 %
 % Eyes %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 \ifpenguin@back\else
-  \fill[\penguin@eye] (-0.175,1.64) ellipse[x radius=0.1, y radius=0.15, rotate=-10];
-  \fill[\penguin@pupil] (-0.145,1.625) ellipse[x radius=0.0357, y radius=0.0714, rotate=-3];
-  \fill[\penguin@eye] (0.175,1.64) ellipse[x radius=0.1, y radius=0.15, rotate=10];
-  \fill[\penguin@pupil] (0.145,1.625) ellipse[x radius=0.0357, y radius=0.0714, rotate=3];
+  \ifpenguin@contour
+    \penguin@part@draw[\penguin@eye] (-0.175,1.64) ellipse[x radius=0.1, y radius=0.15, rotate=-10];
+    \penguin@part@draw[\penguin@pupil] (-0.145,1.625) ellipse[x radius=0.0357, y radius=0.0714, rotate=-3];
+    \penguin@part@draw[\penguin@eye] (0.175,1.64) ellipse[x radius=0.1, y radius=0.15, rotate=10];
+    \penguin@part@draw[\penguin@pupil] (0.145,1.625) ellipse[x radius=0.0357, y radius=0.0714, rotate=3];
+  \else
+    \fill[\penguin@eye] (-0.175,1.64) ellipse[x radius=0.1, y radius=0.15, rotate=-10];
+    \fill[\penguin@pupil] (-0.145,1.625) ellipse[x radius=0.0357, y radius=0.0714, rotate=-3];
+    \fill[\penguin@eye] (0.175,1.64) ellipse[x radius=0.1, y radius=0.15, rotate=10];
+    \fill[\penguin@pupil] (0.145,1.625) ellipse[x radius=0.0357, y radius=0.0714, rotate=3];
+  \fi
 \fi
 %
 % Bill %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
diff --git a/Master/texmf-dist/tex/latex/tikzlings/tikzlings-pigs.sty b/Master/texmf-dist/tex/latex/tikzlings/tikzlings-pigs.sty
index e2ce1712a01..0e4da099bb7 100644
--- a/Master/texmf-dist/tex/latex/tikzlings/tikzlings-pigs.sty
+++ b/Master/texmf-dist/tex/latex/tikzlings/tikzlings-pigs.sty
@@ -12,7 +12,7 @@
 % See http://www.latex-project.org/lppl.txt
 %
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-\ProvidesPackage{tikzlings-pigs}[2020/12/04 version v0.4 Drawing pigs in TikZ]
+\ProvidesPackage{tikzlings-pigs}[2021/03/17 version v0.5 Drawing pigs in TikZ]
 
 \RequirePackage{tikz}
 \RequirePackage{tikzlings-addons}
@@ -32,6 +32,7 @@
 
 \newif\ifpig@threeD
 \newif\ifpig@back
+\newif\ifpig@contour
 
 \tikzset{
   %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
@@ -48,6 +49,8 @@
   %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
   body/.code         = \def\pig@body{#1},
   body               = pigdark,
+  eye/.code          = \def\pig@eye{#1},
+  eye                = gray,   
   %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
   %
   % options
@@ -55,6 +58,10 @@
   %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
   3D/.code           = \pig@threeDtrue, 
   back/.code         = \pig@backtrue,  
+  contour/.code      = \pig@contourtrue
+                       \def\pig@contour{#1},
+  contour/.default   = black,  
+  outline/.forward to = /pig/contour,   
 }
 
 \def\pig@draw{%
@@ -78,14 +85,18 @@
 %
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 % 
-% switch between 2D and 3D, from
+% switch between 2D, 3D and contours, from
 % https://chat.stackexchange.com/transcript/message/45991801#45991801
 %
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 \ifpig@threeD
   \def\pig@part@draw[##1]{\shade[ball color=##1]}
 \else
-  \def\pig@part@draw[##1]{\fill[##1]}
+  \ifpig@contour
+    \def\pig@part@draw[##1]{\draw[##1,\pig@contour,fill=white,line width=\scalingfactor*0.4pt]}
+  \else
+    \def\pig@part@draw[##1]{\fill[##1]}
+  \fi
 \fi
 %
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
@@ -100,7 +111,11 @@
 %
 % Tail %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 \ifpig@back\else
-  \draw[\pig@body,line width=\scalingfactor*0.8pt] (0.8431, 0.583) .. controls (0.8609, 0.4063) and (0.7006, 0.361) .. (0.6384, 0.4293) .. controls (0.5762, 0.4976) and (0.5613, 0.6052) .. (0.6551, 0.629) .. controls (0.7537, 0.6541) and (0.7759, 0.5628) .. (0.7455, 0.4948) .. controls (0.6412, 0.2697) and (0.3543, 0.356) .. (0.2638, 0.4238) .. controls (0.1967, 0.4779) and (0.1788, 0.6076) .. (0.3192, 0.633) .. controls (0.6000, 0.6836) and (0.5130, 0.3048) .. (0.2098, 0.3322) .. controls (0.0809, 0.3438) and (0.0809, 0.5236) .. (0.0809, 0.5236);
+  \ifpig@contour
+    \draw[\pig@contour,line width=\scalingfactor*0.8pt] (0.8431, 0.583) .. controls (0.8609, 0.4063) and (0.7006, 0.361) .. (0.6384, 0.4293) .. controls (0.5762, 0.4976) and (0.5613, 0.6052) .. (0.6551, 0.629) .. controls (0.7537, 0.6541) and (0.7759, 0.5628) .. (0.7455, 0.4948) .. controls (0.6412, 0.2697) and (0.3543, 0.356) .. (0.2638, 0.4238) .. controls (0.1967, 0.4779) and (0.1788, 0.6076) .. (0.3192, 0.633) .. controls (0.6000, 0.6836) and (0.5130, 0.3048) .. (0.2098, 0.3322) .. controls (0.0809, 0.3438) and (0.0809, 0.5236) .. (0.0809, 0.5236);  
+  \else
+    \draw[\pig@body,line width=\scalingfactor*0.8pt] (0.8431, 0.583) .. controls (0.8609, 0.4063) and (0.7006, 0.361) .. (0.6384, 0.4293) .. controls (0.5762, 0.4976) and (0.5613, 0.6052) .. (0.6551, 0.629) .. controls (0.7537, 0.6541) and (0.7759, 0.5628) .. (0.7455, 0.4948) .. controls (0.6412, 0.2697) and (0.3543, 0.356) .. (0.2638, 0.4238) .. controls (0.1967, 0.4779) and (0.1788, 0.6076) .. (0.3192, 0.633) .. controls (0.6000, 0.6836) and (0.5130, 0.3048) .. (0.2098, 0.3322) .. controls (0.0809, 0.3438) and (0.0809, 0.5236) .. (0.0809, 0.5236);
+  \fi
 \fi
 %
 % Feet if back %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
@@ -128,8 +143,8 @@
 \ifpig@back\else
 %
 % Eyes %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-\pig@part@draw[gray] (-0.09, 1.82) circle[radius=0.02];
-\pig@part@draw[gray] ( 0.09, 1.82) circle[radius=0.02];
+\pig@part@draw[\pig@eye] (-0.09, 1.82) circle[radius=0.02];
+\pig@part@draw[\pig@eye] ( 0.09, 1.82) circle[radius=0.02];
 %
 % Nose %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 \pig@part@draw[\pig@body]  (0, 1.62) ellipse[x radius=0.18, y radius=0.14];
@@ -140,7 +155,11 @@
 \ifpig@threeD
   \draw[gray!70!black,line width=\scalingfactor*0.4pt] (0.105, 1.46) arc [start angle=-50, end angle=-130, radius=0.16] ;
 \else
-  \draw[gray,line width=\scalingfactor*0.4pt] (0.105, 1.46) arc [start angle=-50, end angle=-130, radius=0.16] ;
+  \ifpig@contour
+    \draw[\pig@contour,line width=\scalingfactor*0.4pt] (0.105, 1.46) arc [start angle=-50, end angle=-130, radius=0.16] ;
+  \else
+    \draw[gray,line width=\scalingfactor*0.4pt] (0.105, 1.46) arc [start angle=-50, end angle=-130, radius=0.16] ;
+  \fi
 \fi
 %
 % Feet %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
@@ -157,7 +176,11 @@
 %  
 % Tail  if back %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 \ifpig@back
-  \draw[\pig@body,line width=\scalingfactor*0.8pt] (0.8431, 0.583) .. controls (0.8609, 0.4063) and (0.7006, 0.361) .. (0.6384, 0.4293) .. controls (0.5762, 0.4976) and (0.5613, 0.6052) .. (0.6551, 0.629) .. controls (0.7537, 0.6541) and (0.7759, 0.5628) .. (0.7455, 0.4948) .. controls (0.6412, 0.2697) and (0.3543, 0.356) .. (0.2638, 0.4238) .. controls (0.1967, 0.4779) and (0.1788, 0.6076) .. (0.3192, 0.633) .. controls (0.6000, 0.6836) and (0.5130, 0.3048) .. (0.2098, 0.3322) .. controls (0.0809, 0.3438) and (0.0809, 0.5236) .. (0.0809, 0.5236);
+  \ifpig@contour
+    \draw[\pig@contour,line width=\scalingfactor*0.8pt] (0.8431, 0.583) .. controls (0.8609, 0.4063) and (0.7006, 0.361) .. (0.6384, 0.4293) .. controls (0.5762, 0.4976) and (0.5613, 0.6052) .. (0.6551, 0.629) .. controls (0.7537, 0.6541) and (0.7759, 0.5628) .. (0.7455, 0.4948) .. controls (0.6412, 0.2697) and (0.3543, 0.356) .. (0.2638, 0.4238) .. controls (0.1967, 0.4779) and (0.1788, 0.6076) .. (0.3192, 0.633) .. controls (0.6000, 0.6836) and (0.5130, 0.3048) .. (0.2098, 0.3322) .. controls (0.0809, 0.3438) and (0.0809, 0.5236) .. (0.0809, 0.5236);  
+  \else
+    \draw[\pig@body,line width=\scalingfactor*0.8pt] (0.8431, 0.583) .. controls (0.8609, 0.4063) and (0.7006, 0.361) .. (0.6384, 0.4293) .. controls (0.5762, 0.4976) and (0.5613, 0.6052) .. (0.6551, 0.629) .. controls (0.7537, 0.6541) and (0.7759, 0.5628) .. (0.7455, 0.4948) .. controls (0.6412, 0.2697) and (0.3543, 0.356) .. (0.2638, 0.4238) .. controls (0.1967, 0.4779) and (0.1788, 0.6076) .. (0.3192, 0.633) .. controls (0.6000, 0.6836) and (0.5130, 0.3048) .. (0.2098, 0.3322) .. controls (0.0809, 0.3438) and (0.0809, 0.5236) .. (0.0809, 0.5236);
+  \fi
 \fi
 % adding hook for users to customise %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 \csname pighookbody\endcsname
diff --git a/Master/texmf-dist/tex/latex/tikzlings/tikzlings-rhinos.sty b/Master/texmf-dist/tex/latex/tikzlings/tikzlings-rhinos.sty
index ad83d676b1a..5a9e3b9e1a1 100644
--- a/Master/texmf-dist/tex/latex/tikzlings/tikzlings-rhinos.sty
+++ b/Master/texmf-dist/tex/latex/tikzlings/tikzlings-rhinos.sty
@@ -12,7 +12,7 @@
 % See http://www.latex-project.org/lppl.txt
 %
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-\ProvidesPackage{tikzlings-rhinos}[2020/12/04 version v0.4 Drawing rhinos in TikZ]
+\ProvidesPackage{tikzlings-rhinos}[2021/03/17 version v0.5 Drawing rhinos in TikZ]
 
 \RequirePackage{tikz}
 \RequirePackage{tikzlings-addons}
@@ -31,6 +31,7 @@
 
 \newif\ifrhino@threeD
 \newif\ifrhino@back
+\newif\ifrhino@contour
 
 \tikzset{
   %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
@@ -49,13 +50,21 @@
   body               = gray,
   toes/.code         = \def\rhino@toes{#1},
   toes               = \rhino@body!55!white,
+  eye/.code          = \def\rhino@eye{#1},
+  eye                = white,  
+  pupil/.code        = \def\rhino@pupil{#1},
+  pupil              = black,   
   %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
   %
   % options
   %
   %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
   3D/.code           = \rhino@threeDtrue, 
-  back/.code         = \rhino@backtrue,  
+  back/.code         = \rhino@backtrue, 
+  contour/.code      = \rhino@contourtrue
+                       \def\rhino@contour{#1},
+  contour/.default   = black,   
+  outline/.forward to = /rhino/contour,   
 }
 
 \def\rhino@draw{%
@@ -79,14 +88,18 @@
 %
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 % 
-% switch between 2D and 3D, from
+% switch between 2D, 3D and contours, from
 % https://chat.stackexchange.com/transcript/message/45991801#45991801
 %
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 \ifrhino@threeD
   \def\rhino@part@draw[##1]{\shade[ball color=##1]}
 \else
-  \def\rhino@part@draw[##1]{\fill[##1]}
+  \ifrhino@contour
+    \def\rhino@part@draw[##1]{\draw[##1,\rhino@contour,fill=white,line width=\scalingfactor*0.4pt]}
+  \else
+    \def\rhino@part@draw[##1]{\fill[##1]}
+  \fi
 \fi
 %
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
@@ -137,10 +150,17 @@
 \ifrhino@back\else
 %
 % Eyes %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-\fill[white] (-0.11, 1.83) ellipse[x radius=0.08, y radius=0.12];
-\fill[white] (0.11, 1.83) ellipse[x radius=0.08, y radius=0.12];
-\fill[black] (-0.105, 1.78) ellipse[x radius=0.04, y radius=0.07];
-\fill[black] (0.105, 1.78) ellipse[x radius=0.04, y radius=0.07];
+\ifrhino@contour
+  \rhino@part@draw[\rhino@eye] (-0.11, 1.83) ellipse[x radius=0.08, y radius=0.12];
+  \rhino@part@draw[\rhino@eye] (0.11, 1.83) ellipse[x radius=0.08, y radius=0.12];
+  \rhino@part@draw[\rhino@pupil] (-0.105, 1.78) ellipse[x radius=0.04, y radius=0.07];
+  \rhino@part@draw[\rhino@pupil] (0.105, 1.78) ellipse[x radius=0.04, y radius=0.07];
+\else
+  \fill[\rhino@eye] (-0.11, 1.83) ellipse[x radius=0.08, y radius=0.12];
+  \fill[\rhino@eye] (0.11, 1.83) ellipse[x radius=0.08, y radius=0.12];
+  \fill[\rhino@pupil] (-0.105, 1.78) ellipse[x radius=0.04, y radius=0.07];
+  \fill[\rhino@pupil] (0.105, 1.78) ellipse[x radius=0.04, y radius=0.07];
+\fi
 %
 % Nose %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 \rhino@part@draw[\rhino@body!80!white] (0, 1.55) ellipse[x radius=0.36, y radius=0.2];
@@ -152,7 +172,11 @@
 \ifrhino@threeD
   \draw[black,line width=\scalingfactor*0.4pt] (0.125, 1.5) arc [start angle=-50, end angle=-130, radius=0.2] ;
 \else
-  \draw[\rhino@body!70!black,line width=\scalingfactor*0.4pt] (0.125, 1.5) arc [start angle=-50, end angle=-130, radius=0.2] ;
+  \ifrhino@contour
+    \draw[\rhino@contour,line width=\scalingfactor*0.4pt] (0.125, 1.5) arc [start angle=-50, end angle=-130, radius=0.2] ;
+  \else
+    \draw[\rhino@body!70!black,line width=\scalingfactor*0.4pt] (0.125, 1.5) arc [start angle=-50, end angle=-130, radius=0.2] ;
+  \fi
 \fi
 %
 % Feet %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
diff --git a/Master/texmf-dist/tex/latex/tikzlings/tikzlings-sheep.sty b/Master/texmf-dist/tex/latex/tikzlings/tikzlings-sheep.sty
index c29338cf6bc..c8360574afb 100644
--- a/Master/texmf-dist/tex/latex/tikzlings/tikzlings-sheep.sty
+++ b/Master/texmf-dist/tex/latex/tikzlings/tikzlings-sheep.sty
@@ -12,7 +12,7 @@
 % See http://www.latex-project.org/lppl.txt
 %
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-\ProvidesPackage{tikzlings-sheep}[2020/12/04 version v0.4 Drawing sheep in TikZ]
+\ProvidesPackage{tikzlings-sheep}[2021/03/17 version v0.5 Drawing sheep in TikZ]
 
 \RequirePackage{tikz}
 \RequirePackage{tikzlings-addons}
@@ -36,6 +36,7 @@
 \newif\ifsheep@monocle
 \newif\ifsheep@blush
 \newif\ifsheep@back
+\newif\ifsheep@contour
 
 \tikzset{
   %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
@@ -52,6 +53,8 @@
   %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
   body/.code         = \def\sheep@body{#1},
   body               = brown!50!darkgray!97!yellow,
+  eye/.code          = \def\sheep@eye{#1},
+  eye                = \sheep@body!50!black, 
   %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
   %
   % options
@@ -61,6 +64,10 @@
   monocle/.code      = \sheep@monocletrue,
   3D/.code           = \sheep@threeDtrue, 
   back/.code         = \sheep@backtrue,  
+  contour/.code      = \sheep@contourtrue
+                       \def\sheep@contour{#1},
+  contour/.default   = black,  
+  outline/.forward to = /sheep/contour,  
 }
 
 \def\sheep@draw{%
@@ -84,14 +91,18 @@
 %
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 % 
-% switch between 2D and 3D, from
+% switch between 2D, 3D and contours, from
 % https://chat.stackexchange.com/transcript/message/45991801#45991801
 %
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 \ifsheep@threeD
   \def\sheep@part@draw[##1]{\shade[ball color=##1]}
 \else
-  \def\sheep@part@draw[##1]{\fill[##1]}
+  \ifsheep@contour
+    \def\sheep@part@draw[##1]{\draw[##1,\sheep@contour,fill=white,line width=\scalingfactor*0.4pt]}
+  \else
+    \def\sheep@part@draw[##1]{\fill[##1]}
+  \fi
 \fi
 %
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
@@ -131,11 +142,11 @@
 \fi
 %
 % Hair %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-\sheep@part@draw[\sheep@body!50!darkgray,decorate,decoration={bumps}] (-0.275,1.98) -- (-0.2,2.2)  -- (-0.008,2.2) -- (0.2,2.2) -- (0.275,1.98) -- cycle;
+\sheep@part@draw[\sheep@body!50!darkgray,decorate,decoration={bumps,amplitude=\scalingfactor*2.5pt,segment length=\scalingfactor*10pt}] (-0.275,1.98) -- (-0.2,2.2)  -- (-0.008,2.2) -- (0.2,2.2) -- (0.275,1.98) -- cycle;
 %
 % Tail  if back %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 \ifsheep@back
-  \filldraw[\sheep@body!45!white!95!orange,rounded corners=0.1pt] (0,0.7) -- (0.08, 0.3236) arc (0:-180:2pt) -- cycle;
+  \sheep@part@draw[\sheep@body!45!white!95!orange,rounded corners=0.1pt] (0,0.7) -- (0.08, 0.3236) arc (0:-180:2pt) -- cycle;
 \fi
 %
 % Show details only from the front %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
@@ -156,12 +167,16 @@
 % 
 % Eyes %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 \ifsheep@back\else
-  \sheep@part@draw[\sheep@body!50!black] (0.2, 1.66) circle[radius=0.06];
-  \sheep@part@draw[\sheep@body!50!black] (-0.2, 1.66) circle[radius=0.06];
+  \sheep@part@draw[\sheep@eye] (0.2, 1.66) circle[radius=0.06];
+  \sheep@part@draw[\sheep@eye] (-0.2, 1.66) circle[radius=0.06];
 \fi
 %
 % Nose %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-\draw[\sheep@body!50!black,line width=\scalingfactor*0.8pt,line cap=round] (0.16,1.43) arc [start angle=-30, end angle=-90, radius=0.16] -- (0,1.164) -- (0,1.3485) arc [start angle=-90, end angle=-150, radius=0.16]; 
+\ifsheep@contour
+  \draw[\sheep@contour,line width=\scalingfactor*0.8pt,line cap=round]  (0.16,1.43) arc [start angle=-30, end angle=-150, radius=0.185] (0.0,1.335) -- (0,1.175);
+\else
+  \draw[\sheep@body!50!black,line width=\scalingfactor*0.8pt,line cap=round]  (0.16,1.43) arc [start angle=-30, end angle=-150, radius=0.185] (0.0,1.335) -- (0,1.175);
+\fi 
 %
 % Feet %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 \sheep@part@draw[\sheep@body!45!white!95!orange] (0.3216,0.13) arc (-15:195:0.10) -- (0.16,0.13) to [bend left] (0.25,0.13) -- cycle;
@@ -172,8 +187,13 @@
 %
 % Blush %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 \ifsheep@blush
-  \fill[red,path fading=sheep@blush] (-0.25, 1.5) circle[radius=0.1]; 
-  \fill[red,path fading=sheep@blush] (0.25, 1.5) circle[radius=0.1];
+  \ifsheep@contour
+    \fill[\sheep@contour,path fading=sheep@blush] (-0.25, 1.5) circle[radius=0.1]; 
+    \fill[\sheep@contour,path fading=sheep@blush] (0.25, 1.5) circle[radius=0.1];
+  \else
+    \fill[red,path fading=sheep@blush] (-0.25, 1.5) circle[radius=0.1]; 
+    \fill[red,path fading=sheep@blush] (0.25, 1.5) circle[radius=0.1];
+  \fi
 \fi
 %
 % monocle %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
diff --git a/Master/texmf-dist/tex/latex/tikzlings/tikzlings-sloths.sty b/Master/texmf-dist/tex/latex/tikzlings/tikzlings-sloths.sty
index b3c0e9bc134..8822df75f79 100644
--- a/Master/texmf-dist/tex/latex/tikzlings/tikzlings-sloths.sty
+++ b/Master/texmf-dist/tex/latex/tikzlings/tikzlings-sloths.sty
@@ -12,7 +12,7 @@
 % See http://www.latex-project.org/lppl.txt
 %
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-\ProvidesPackage{tikzlings-sloths}[2020/12/04 version v0.4 Drawing sloths in TikZ]
+\ProvidesPackage{tikzlings-sloths}[2021/03/17 version v0.5 Drawing sloths in TikZ]
 
 \RequirePackage{tikz}
 \RequirePackage{tikzlings-addons}
@@ -34,6 +34,7 @@
 \newif\ifsloth@sleeping
 \newif\ifsloth@threeD
 \newif\ifsloth@back
+\newif\ifsloth@contour
 
 \tikzset{
   %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
@@ -50,6 +51,8 @@
   %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
   body/.code         = \def\sloth@body{#1},
   body               = slothcol,
+  eye/.code          = \def\sloth@eye{#1},
+  eye                = black,   
   %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
   %
   % options
@@ -58,6 +61,10 @@
   sleeping/.code     = \sloth@sleepingtrue, 
   3D/.code           = \sloth@threeDtrue,       
   back/.code         = \sloth@backtrue,  
+  contour/.code      = \sloth@contourtrue
+                       \def\sloth@contour{#1},
+  contour/.default   = black,  
+  outline/.forward to = /sloth/contour,  
 }
 
 \def\sloth@draw{%
@@ -81,14 +88,18 @@
 %
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 % 
-% switch between 2D and 3D, from
+% switch between 2D, 3D and contours, from
 % https://chat.stackexchange.com/transcript/message/45991801#45991801
 %
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 \ifsloth@threeD
   \def\sloth@part@draw[##1]{\shade[ball color=##1]}
 \else
-  \def\sloth@part@draw[##1]{\fill[##1]}
+  \ifsloth@contour
+    \def\sloth@part@draw[##1]{\draw[##1,\sloth@contour,fill=white,line width=\scalingfactor*0.4pt]}
+  \else
+    \def\sloth@part@draw[##1]{\fill[##1]}
+  \fi
 \fi
 %
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
@@ -148,28 +159,50 @@
 \sloth@part@draw[\sloth@body!50!white] ( 0.40,1.67) .. controls ( 0.40,1.90) and ( 0.12,2.09) .. ( 0.00,1.93) .. controls (-0.12,2.09) and (-0.40,1.90) .. (-0.40,1.67) .. controls (-0.40,1.45) and (-0.25,1.38) .. ( 0.00,1.38) .. controls ( 0.25,1.38) and ( 0.40,1.45) .. ( 0.40,1.67) -- cycle;
 %
 % behind the eyes %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-\fill[\sloth@body!60!black] (0.3785,1.5336) .. controls (0.3012,1.5864) and (0.1829,1.6693) .. (0.1377,1.7234) .. controls (0.1184,1.7464) and (0.1624,1.8242) .. (0.1906,1.8137) .. controls (0.2673,1.7851) and (0.3597,1.7125) .. (0.3994,1.6531) .. controls (0.4129,1.6328) and (0.3785,1.5336) .. (0.3785,1.5336) -- cycle;
-\fill[\sloth@body!60!black] (-0.3785,1.5336) .. controls (-0.3012,1.5864) and (-0.1829,1.6693) .. (-0.1377,1.7234) .. controls (-0.1184,1.7464) and (-0.1624,1.8242) .. (-0.1906,1.8137) .. controls (-0.2673,1.7851) and (-0.3597,1.7125) .. (-0.3994,1.6531) .. controls (-0.4129,1.6328) and (-0.3785,1.5336) .. (-0.3785,1.5336) -- cycle;
+\ifsloth@contour
+  \draw[\sloth@contour,fill=white,line width=\scalingfactor*0.4pt] (0.3785,1.5336) .. controls (0.3012,1.5864) and (0.1829,1.6693) .. (0.1377,1.7234) .. controls (0.1184,1.7464) and (0.1624,1.8242) .. (0.1906,1.8137) .. controls (0.2673,1.7851) and (0.3597,1.7125) .. (0.3994,1.6531) .. controls (0.4129,1.6328) and (0.3785,1.5336) .. (0.3785,1.5336) -- cycle;
+  \draw[\sloth@contour,fill=white,line width=\scalingfactor*0.4pt] (-0.3785,1.5336) .. controls (-0.3012,1.5864) and (-0.1829,1.6693) .. (-0.1377,1.7234) .. controls (-0.1184,1.7464) and (-0.1624,1.8242) .. (-0.1906,1.8137) .. controls (-0.2673,1.7851) and (-0.3597,1.7125) .. (-0.3994,1.6531) .. controls (-0.4129,1.6328) and (-0.3785,1.5336) .. (-0.3785,1.5336) -- cycle;
+\else
+  \fill[\sloth@body!60!black] (0.3785,1.5336) .. controls (0.3012,1.5864) and (0.1829,1.6693) .. (0.1377,1.7234) .. controls (0.1184,1.7464) and (0.1624,1.8242) .. (0.1906,1.8137) .. controls (0.2673,1.7851) and (0.3597,1.7125) .. (0.3994,1.6531) .. controls (0.4129,1.6328) and (0.3785,1.5336) .. (0.3785,1.5336) -- cycle;
+  \fill[\sloth@body!60!black] (-0.3785,1.5336) .. controls (-0.3012,1.5864) and (-0.1829,1.6693) .. (-0.1377,1.7234) .. controls (-0.1184,1.7464) and (-0.1624,1.8242) .. (-0.1906,1.8137) .. controls (-0.2673,1.7851) and (-0.3597,1.7125) .. (-0.3994,1.6531) .. controls (-0.4129,1.6328) and (-0.3785,1.5336) .. (-0.3785,1.5336) -- cycle;
+\fi
 %
 % Eyes %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 \ifsloth@sleeping
-  \fill[\sloth@body!50!white] (0.237, 1.743) .. controls (0.237, 1.712) and (0.157, 1.712) .. (0.157, 1.743) .. controls (0.157, 1.802) and (0.237, 1.802) .. (0.237, 1.743) -- cycle;
-  \fill[\sloth@body!50!white] (-0.237, 1.743) .. controls (-0.237, 1.712) and (-0.157, 1.712) .. (-0.157, 1.743) .. controls (-0.157, 1.802) and (-0.237, 1.802) .. (-0.237, 1.743) -- cycle;
-  %
-  \fill[\sloth@body!50!white] (0.195, 1.705) rectangle ++(0.005, 0.02);  
-  \fill[\sloth@body!50!white,rotate around={22:(0.195, 1.76)}] (0.195, 1.705) rectangle ++(0.005, 0.02); 
-  \fill[\sloth@body!50!white,rotate around={44:(0.195, 1.76)}] (0.195, 1.701) rectangle ++(0.005, 0.02);   
-  \fill[\sloth@body!50!white,rotate around={-22:(0.195, 1.76)}] (0.195, 1.705) rectangle ++(0.005, 0.02); 
-  \fill[\sloth@body!50!white,rotate around={-44:(0.195, 1.76)}] (0.195, 1.705) rectangle ++(0.005, 0.02);     
-  %
-  \fill[\sloth@body!50!white] (-0.195, 1.705) rectangle ++(0.005, 0.02);  
-  \fill[\sloth@body!50!white,rotate around={22:(-0.195, 1.76)}] (-0.195, 1.705) rectangle ++(0.005, 0.02); 
-  \fill[\sloth@body!50!white,rotate around={44:(-0.195, 1.76)}] (-0.195, 1.705) rectangle ++(0.005, 0.02);   
-  \fill[\sloth@body!50!white,rotate around={-22:(-0.195, 1.76)}] (-0.195, 1.705) rectangle ++(0.005, 0.02); 
-  \fill[\sloth@body!50!white,rotate around={-44:(-0.195, 1.76)}] (-0.195, 1.701) rectangle ++(0.005, 0.02);   
+  \ifsloth@contour
+    \fill[\sloth@contour] (0.195, 1.705) rectangle ++(0.005, 0.02);  
+    \fill[\sloth@contour,rotate around={22:(0.195, 1.76)}] (0.195, 1.705) rectangle ++(0.005, 0.02); 
+    \fill[\sloth@contour,rotate around={44:(0.195, 1.76)}] (0.195, 1.701) rectangle ++(0.005, 0.02);   
+    \fill[\sloth@contour,rotate around={-22:(0.195, 1.76)}] (0.195, 1.705) rectangle ++(0.005, 0.02); 
+    \fill[\sloth@contour,rotate around={-44:(0.195, 1.76)}] (0.195, 1.705) rectangle ++(0.005, 0.02);     
+    %
+    \fill[\sloth@contour] (-0.195, 1.705) rectangle ++(0.005, 0.02);  
+    \fill[\sloth@contour,rotate around={22:(-0.195, 1.76)}] (-0.195, 1.705) rectangle ++(0.005, 0.02); 
+    \fill[\sloth@contour,rotate around={44:(-0.195, 1.76)}] (-0.195, 1.705) rectangle ++(0.005, 0.02);   
+    \fill[\sloth@contour,rotate around={-22:(-0.195, 1.76)}] (-0.195, 1.705) rectangle ++(0.005, 0.02); 
+    \fill[\sloth@contour,rotate around={-44:(-0.195, 1.76)}] (-0.195, 1.701) rectangle ++(0.005, 0.02);  
+    %
+    \draw[\sloth@contour, fill=white,line width=\scalingfactor*0.4pt] (0.237, 1.743) .. controls (0.237, 1.712) and (0.157, 1.712) .. (0.157, 1.743) .. controls (0.157, 1.802) and (0.237, 1.802) .. (0.237, 1.743) -- cycle;
+    \draw[\sloth@contour, fill=white,line width=\scalingfactor*0.4pt] (-0.237, 1.743) .. controls (-0.237, 1.712) and (-0.157, 1.712) .. (-0.157, 1.743) .. controls (-0.157, 1.802) and (-0.237, 1.802) .. (-0.237, 1.743) -- cycle;  
+  \else
+    \fill[\sloth@body!50!white] (0.237, 1.743) .. controls (0.237, 1.712) and (0.157, 1.712) .. (0.157, 1.743) .. controls (0.157, 1.802) and (0.237, 1.802) .. (0.237, 1.743) -- cycle;
+    \fill[\sloth@body!50!white] (-0.237, 1.743) .. controls (-0.237, 1.712) and (-0.157, 1.712) .. (-0.157, 1.743) .. controls (-0.157, 1.802) and (-0.237, 1.802) .. (-0.237, 1.743) -- cycle;
+    %
+    \fill[\sloth@body!50!white] (0.195, 1.705) rectangle ++(0.005, 0.02);  
+    \fill[\sloth@body!50!white,rotate around={22:(0.195, 1.76)}] (0.195, 1.705) rectangle ++(0.005, 0.02); 
+    \fill[\sloth@body!50!white,rotate around={44:(0.195, 1.76)}] (0.195, 1.701) rectangle ++(0.005, 0.02);   
+    \fill[\sloth@body!50!white,rotate around={-22:(0.195, 1.76)}] (0.195, 1.705) rectangle ++(0.005, 0.02); 
+    \fill[\sloth@body!50!white,rotate around={-44:(0.195, 1.76)}] (0.195, 1.705) rectangle ++(0.005, 0.02);     
+    %
+    \fill[\sloth@body!50!white] (-0.195, 1.705) rectangle ++(0.005, 0.02);  
+    \fill[\sloth@body!50!white,rotate around={22:(-0.195, 1.76)}] (-0.195, 1.705) rectangle ++(0.005, 0.02); 
+    \fill[\sloth@body!50!white,rotate around={44:(-0.195, 1.76)}] (-0.195, 1.705) rectangle ++(0.005, 0.02);   
+    \fill[\sloth@body!50!white,rotate around={-22:(-0.195, 1.76)}] (-0.195, 1.705) rectangle ++(0.005, 0.02); 
+    \fill[\sloth@body!50!white,rotate around={-44:(-0.195, 1.76)}] (-0.195, 1.701) rectangle ++(0.005, 0.02);   
+  \fi
 \else
-  \sloth@part@draw[black] (0.193,1.75) circle[radius=0.04];
-  \sloth@part@draw[black] (-0.193,1.75) circle[radius=0.04];
+  \sloth@part@draw[\sloth@eye] (0.193,1.75) circle[radius=0.04];
+  \sloth@part@draw[\sloth@eye] (-0.193,1.75) circle[radius=0.04];
   \fill[white] (-0.2  ,1.765) circle[radius=0.006];
   \fill[white] ( 0.186,1.765) circle[radius=0.006];
 \fi
@@ -178,29 +211,53 @@
 \sloth@part@draw[\sloth@body!40!black] (0,1.665) ellipse[x radius=0.078, y radius=0.048];
 %
 % Mouth %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-\draw[\sloth@body!40!black,line width=\scalingfactor*0.4pt]  (0.115, 1.55) arc [start angle=-40, end angle=-140, radius=0.16];
+\ifsloth@contour
+  \draw[\sloth@contour,line width=\scalingfactor*0.4pt]  (0.115, 1.55) arc [start angle=-40, end angle=-140, radius=0.16];
+\else
+  \draw[\sloth@body!40!black,line width=\scalingfactor*0.4pt]  (0.115, 1.55) arc [start angle=-40, end angle=-140, radius=0.16];
+\fi
 %
 % Arms %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 \sloth@part@draw[\sloth@body] (-0.50, 1.24) .. controls (-0.54, 1.24) and (-0.55, 1.20) .. (-0.56, 1.17) .. controls (-0.61, 1.06) and (-0.63, 0.95) .. (-0.64, 0.83) .. controls (-0.64, 0.80) and (-0.64, 0.77) .. (-0.63, 0.74) .. controls (-0.57, 0.66) and (-0.47, 0.60) .. (-0.38, 0.56) .. controls (-0.31, 0.54) and (-0.23, 0.52) .. (-0.16, 0.54) .. controls (-0.12, 0.54) and (-0.10, 0.59) .. (-0.13, 0.61) .. controls (-0.17, 0.68) and (-0.24, 0.73) .. (-0.30, 0.77) .. controls (-0.34, 0.79) and (-0.38, 0.81) .. (-0.42, 0.83) .. controls (-0.41, 0.92) and (-0.41, 1.01) .. (-0.42, 1.09) .. controls (-0.43, 1.14) and (-0.44, 1.19) .. (-0.48, 1.23) .. controls (-0.48, 1.24) and (-0.49, 1.24) .. (-0.50, 1.24) -- cycle;
 \sloth@part@draw[\sloth@body] (0.50, 1.24) .. controls (0.54, 1.24) and (0.55, 1.20) .. (0.56, 1.17) .. controls (0.61, 1.06) and (0.63, 0.95) .. (0.64, 0.83) .. controls (0.64, 0.80) and (0.64, 0.77) .. (0.63, 0.74) .. controls (0.57, 0.66) and (0.47, 0.60) .. (0.38, 0.56) .. controls (0.31, 0.54) and (0.23, 0.52) .. (0.16, 0.54) .. controls (0.12, 0.54) and (0.10, 0.59) .. (0.13, 0.61) .. controls (0.17, 0.68) and (0.24, 0.73) .. (0.30, 0.77) .. controls (0.34, 0.79) and (0.38, 0.81) .. (0.42, 0.83) .. controls (0.41, 0.92) and (0.41, 1.01) .. (0.42, 1.09) .. controls (0.43, 1.14) and (0.44, 1.19) .. (0.48, 1.23) .. controls (0.48, 1.24) and (0.49, 1.24) .. (0.50, 1.24) -- cycle;
 %
-\fill[\sloth@body!50!black] (0.15, 0.61) ellipse[x radius=0.017, y radius=0.07, rotate=110];
-\fill[\sloth@body!50!black] (0.17, 0.57) ellipse[x radius=0.015, y radius=0.07, rotate=117];
-\fill[\sloth@body!50!black] (0.19, 0.53) ellipse[x radius=0.012, y radius=0.062, rotate=125];
-%
-\fill[\sloth@body!50!black] (-0.15, 0.61) ellipse[x radius=0.017, y radius=0.07, rotate=-110];
-\fill[\sloth@body!50!black] (-0.17, 0.57) ellipse[x radius=0.015, y radius=0.07, rotate=-117];
-\fill[\sloth@body!50!black] (-0.19, 0.53) ellipse[x radius=0.012, y radius=0.062, rotate=-125];
+\ifsloth@contour
+  \draw[\sloth@contour,fill=white,line width=\scalingfactor*0.4pt] (0.15, 0.61) ellipse[x radius=0.017, y radius=0.07, rotate=110];
+  \draw[\sloth@contour,fill=white,line width=\scalingfactor*0.4pt] (0.17, 0.57) ellipse[x radius=0.015, y radius=0.07, rotate=117];
+  \draw[\sloth@contour,fill=white,line width=\scalingfactor*0.4pt] (0.19, 0.53) ellipse[x radius=0.012, y radius=0.062, rotate=125];
+  %
+  \draw[\sloth@contour,fill=white,line width=\scalingfactor*0.4pt] (-0.15, 0.61) ellipse[x radius=0.017, y radius=0.07, rotate=-110];
+  \draw[\sloth@contour,fill=white,line width=\scalingfactor*0.4pt] (-0.17, 0.57) ellipse[x radius=0.015, y radius=0.07, rotate=-117];
+  \draw[\sloth@contour,fill=white,line width=\scalingfactor*0.4pt] (-0.19, 0.53) ellipse[x radius=0.012, y radius=0.062, rotate=-125];
+\else
+  \fill[\sloth@body!50!black] (0.15, 0.61) ellipse[x radius=0.017, y radius=0.07, rotate=110];
+  \fill[\sloth@body!50!black] (0.17, 0.57) ellipse[x radius=0.015, y radius=0.07, rotate=117];
+  \fill[\sloth@body!50!black] (0.19, 0.53) ellipse[x radius=0.012, y radius=0.062, rotate=125];
+  %
+  \fill[\sloth@body!50!black] (-0.15, 0.61) ellipse[x radius=0.017, y radius=0.07, rotate=-110];
+  \fill[\sloth@body!50!black] (-0.17, 0.57) ellipse[x radius=0.015, y radius=0.07, rotate=-117];
+  \fill[\sloth@body!50!black] (-0.19, 0.53) ellipse[x radius=0.012, y radius=0.062, rotate=-125];
+\fi
 %
 % Feet %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 \sloth@part@draw[\sloth@body] (0.33,0.31) ellipse[x radius=0.25, y radius=0.13, rotate=25];
 \sloth@part@draw[\sloth@body] (-0.33,0.31) ellipse[x radius=0.25, y radius=0.13, rotate=-25];
-\fill[\sloth@body!50!black] (-0.125,0.265) ellipse[x radius=0.07, y radius=0.019, rotate=-10];
-\fill[\sloth@body!50!black] (-0.14,0.21) ellipse[x radius=0.07, y radius=0.017, rotate=-16];
-\fill[\sloth@body!50!black] (-0.16,0.165) ellipse[x radius=0.07, y radius=0.015, rotate=-22];
-\fill[\sloth@body!50!black] (0.125,0.265) ellipse[x radius=0.07, y radius=0.019, rotate=10];
-\fill[\sloth@body!50!black] (0.14,0.21) ellipse[x radius=0.07, y radius=0.017, rotate=16];
-\fill[\sloth@body!50!black] (0.16,0.165) ellipse[x radius=0.07, y radius=0.015, rotate=22];
+%
+\ifsloth@contour
+  \draw[\sloth@contour,fill=white,line width=\scalingfactor*0.4pt] (-0.125,0.265) ellipse[x radius=0.07, y radius=0.019, rotate=-10];
+  \draw[\sloth@contour,fill=white,line width=\scalingfactor*0.4pt] (-0.14,0.21) ellipse[x radius=0.07, y radius=0.017, rotate=-16];
+  \draw[\sloth@contour,fill=white,line width=\scalingfactor*0.4pt] (-0.16,0.165) ellipse[x radius=0.07, y radius=0.015, rotate=-22];
+  \draw[\sloth@contour,fill=white,line width=\scalingfactor*0.4pt] (0.125,0.265) ellipse[x radius=0.07, y radius=0.019, rotate=10];
+  \draw[\sloth@contour,fill=white,line width=\scalingfactor*0.4pt] (0.14,0.21) ellipse[x radius=0.07, y radius=0.017, rotate=16];
+  \draw[\sloth@contour,fill=white,line width=\scalingfactor*0.4pt] (0.16,0.165) ellipse[x radius=0.07, y radius=0.015, rotate=22];
+\else
+  \fill[\sloth@body!50!black] (-0.125,0.265) ellipse[x radius=0.07, y radius=0.019, rotate=-10];
+  \fill[\sloth@body!50!black] (-0.14,0.21) ellipse[x radius=0.07, y radius=0.017, rotate=-16];
+  \fill[\sloth@body!50!black] (-0.16,0.165) ellipse[x radius=0.07, y radius=0.015, rotate=-22];
+  \fill[\sloth@body!50!black] (0.125,0.265) ellipse[x radius=0.07, y radius=0.019, rotate=10];
+  \fill[\sloth@body!50!black] (0.14,0.21) ellipse[x radius=0.07, y radius=0.017, rotate=16];
+  \fill[\sloth@body!50!black] (0.16,0.165) ellipse[x radius=0.07, y radius=0.015, rotate=22];
+\fi
 %
 \fi
 % adding hook for users to customise %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
diff --git a/Master/texmf-dist/tex/latex/tikzlings/tikzlings-snowmans.sty b/Master/texmf-dist/tex/latex/tikzlings/tikzlings-snowmans.sty
index 2770cb5aa95..52c00cda6f6 100644
--- a/Master/texmf-dist/tex/latex/tikzlings/tikzlings-snowmans.sty
+++ b/Master/texmf-dist/tex/latex/tikzlings/tikzlings-snowmans.sty
@@ -12,7 +12,7 @@
 % See http://www.latex-project.org/lppl.txt
 %
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-\ProvidesPackage{tikzlings-snowmans}[2020/12/04 version v0.4 Draw snowmans in TikZ]
+\ProvidesPackage{tikzlings-snowmans}[2021/03/17 version v0.5 Draw snowmans in TikZ]
 
 \RequirePackage{tikz}
 \RequirePackage{tikzlings-addons}
@@ -32,6 +32,7 @@
 \newif\ifsnowman@threeD
 \newif\ifsnowman@back
 \newif\ifsnowman@globalwarming
+\newif\ifsnowman@contour
 
 \tikzset{
   %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
@@ -67,6 +68,11 @@
                        \def\snowman@globalwarming{#1},
   globalwarming/.default = blue!10!white,                       
   global warming/.forward to = /snowman/globalwarming,
+  contour/.code      = \snowman@contourtrue
+                       \def\snowman@contour{#1}
+                       \def\snowman@mouth{#1},
+  contour/.default   = black,  
+  outline/.forward to = /snowman/contour,  
 }
 
 \def\snowman@draw{%
@@ -90,14 +96,18 @@
 %
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 % 
-% switch between 2D and 3D, from
+% switch between 2D, 3D and contours, from
 % https://chat.stackexchange.com/transcript/message/45991801#45991801
 %
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 \ifsnowman@threeD
   \def\snowman@part@draw[##1]{\shade[ball color=##1]}
 \else
-  \def\snowman@part@draw[##1]{\fill[##1]}
+  \ifsnowman@contour
+    \def\snowman@part@draw[##1]{\draw[##1,\snowman@contour,fill=white,line width=\scalingfactor*0.4pt]}
+  \else
+    \def\snowman@part@draw[##1]{\fill[##1]}
+  \fi
 \fi
 %
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
@@ -114,7 +124,11 @@
 \ifsnowman@globalwarming
   %
   % Puddle %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-  \fill[\snowman@globalwarming] (0,1.15) ellipse[x radius=1.6,y radius=1.15];
+  \ifsnowman@contour
+    \draw[\snowman@contour,fill=white,line width=\scalingfactor*0.4pt] (0,1.15) ellipse[x radius=1.6,y radius=1.15];
+  \else
+    \fill[\snowman@globalwarming] (0,1.15) ellipse[x radius=1.6,y radius=1.15];
+  \fi
   %
   % adding hook for users to customise %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
   \csname snowmanhookbelly\endcsname
@@ -134,8 +148,7 @@
   \snowman@part@draw[\snowman@eye] (-0.1,1.55) circle[radius=0.06]; 
   %
   % Nose %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-  \snowman@part@draw[\snowman@nose] (-0.6,1.54) -- (-0.6,1.4) -- (-0.8,1.42) -- cycle;
-  \snowman@part@draw[\snowman@nose] (-0.6,1.47) circle[radius=0.07];
+  \snowman@part@draw[\snowman@nose] (-0.6,1.4) -- (-0.8,1.42) -- (-0.6,1.54) (-0.6,1.4) arc[radius=0.07, start angle=-90, end angle=90];  
   %
   % Buttons %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
   \snowman@part@draw[\snowman@buttons] (0.1,0.8) circle[radius=0.06];
@@ -175,7 +188,7 @@
   \snowman@part@draw[\snowman@eye] (0.155,1.8) circle[radius=0.04]; 
   %
   % Nose %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-  \snowman@part@draw[\snowman@nose] (0,1.67) circle[radius=0.05] (0,1.72) -- (0,1.62) -- (0.15,1.64) -- cycle;
+  \snowman@part@draw[\snowman@nose] (0,1.72) arc [radius=0.05, start angle=90, end angle=270] (0,1.62) -- (0.15,1.64) -- (0,1.72);
   %
   % Buttons %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
   \snowman@part@draw[\snowman@buttons] (0,1.15) circle[radius=0.04]; 
diff --git a/Master/texmf-dist/tex/latex/tikzlings/tikzlings-squirrels.sty b/Master/texmf-dist/tex/latex/tikzlings/tikzlings-squirrels.sty
index 8a5baef368b..73d528f7eb8 100644
--- a/Master/texmf-dist/tex/latex/tikzlings/tikzlings-squirrels.sty
+++ b/Master/texmf-dist/tex/latex/tikzlings/tikzlings-squirrels.sty
@@ -12,7 +12,7 @@
 % See http://www.latex-project.org/lppl.txt
 %
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-\ProvidesPackage{tikzlings-squirrels}[2020/12/04 version v0.4 Drawing squirrels in TikZ]
+\ProvidesPackage{tikzlings-squirrels}[2021/03/17 version v0.5 Drawing squirrels in TikZ]
 
 \RequirePackage{tikz}
 \RequirePackage{tikzlings-addons}
@@ -30,6 +30,7 @@
 
 \newif\ifsquirrel@threeD
 \newif\ifsquirrel@back
+\newif\ifsquirrel@contour
 
 \tikzset{
   %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
@@ -46,6 +47,10 @@
   %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
   body/.code         = \def\squirrel@body{#1},
   body               = brown!40!gray!90!red,
+  eye/.code          = \def\squirrel@eye{#1},
+  eye                = white, 
+  pupil/.code        = \def\squirrel@pupil{#1},
+  pupil              = black,    
   %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
   %
   % options
@@ -53,6 +58,10 @@
   %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
   3D/.code           = \squirrel@threeDtrue,  
   back/.code         = \squirrel@backtrue,  
+  contour/.code      = \squirrel@contourtrue
+                       \def\squirrel@contour{#1},
+  contour/.default   = black,
+  outline/.forward to = /squirrel/contour,
 }
 
 \def\squirrel@draw{%
@@ -77,17 +86,21 @@
 %
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 % 
-% switch between 2D and 3D, from
+% switch between 2D, 3D and contours, from
 % https://chat.stackexchange.com/transcript/message/45991801#45991801
 %
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 \ifsquirrel@threeD
   \def\squirrel@part@draw[##1]{\shade[ball color=##1]}
 \else
-  \def\squirrel@part@draw[##1]{\fill[##1]}
+  \ifsquirrel@contour
+    \def\squirrel@part@draw[##1]{\draw[##1,\squirrel@contour,fill=white,line width=\scalingfactor*0.4pt]}
+  \else
+    \def\squirrel@part@draw[##1]{\fill[##1]}
+  \fi
 \fi
 %
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 %
 % Body parts (center: x=0)
 % 
@@ -126,7 +139,16 @@
 (-0.1920,1.9906) .. controls (-0.1657,2.0780) and (-0.1839,2.1332) .. (-0.1839,2.1332) .. controls (-0.1839,2.1332) and (-0.1123,2.1773) .. (-0.0941,2.0720) .. controls (-0.0716,2.0156) and (-0.0753,1.9519) .. (-0.1023,1.9293) .. controls (-0.1293,1.9068) and (-0.1696,1.9342) .. (-0.1920,1.9906) -- cycle;
 %
 % Head %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-\squirrel@part@draw[\squirrel@body] (0,1.75) circle[radius=0.3]  (0.2,1.6) circle[radius=0.15]  (-0.2,1.6) circle[radius=0.15];
+\ifsquirrel@contour
+  \squirrel@part@draw[\squirrel@body] (0,1.75) circle[radius=0.3]; 
+  \squirrel@part@draw[\squirrel@body] (0.2,1.6) circle[radius=0.15];  
+  \squirrel@part@draw[\squirrel@body] (-0.2,1.6) circle[radius=0.15];
+  \ifsquirrel@back
+    \squirrel@part@draw[\squirrel@body] (0,1.75) circle[radius=0.3]; 
+  \fi
+\else
+  \squirrel@part@draw[\squirrel@body] (0,1.75) circle[radius=0.3]  (0.2,1.6) circle[radius=0.15]  (-0.2,1.6) circle[radius=0.15];
+\fi
 %
 \ifsquirrel@back
   % Tail %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
@@ -138,15 +160,21 @@
 \squirrel@part@draw[\squirrel@body!70!brown!60!black] (0,1.66) ellipse[x radius=0.06, y radius=0.03];
 % 
 % Eyes %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-\squirrel@part@draw[white] (0.07,1.78) ellipse[x radius=0.05, y radius=0.07];
-\squirrel@part@draw[white] (-0.07,1.78) ellipse[x radius=0.05, y radius=0.07];
-\squirrel@part@draw[black] (0.07,1.76) ellipse[x radius=0.017, y radius=0.027];
-\squirrel@part@draw[black] (-0.07,1.76) ellipse[x radius=0.017, y radius=0.027];
+\squirrel@part@draw[\squirrel@eye] (0.07,1.78) ellipse[x radius=0.05, y radius=0.07];
+\squirrel@part@draw[\squirrel@eye] (-0.07,1.78) ellipse[x radius=0.05, y radius=0.07];
+\squirrel@part@draw[\squirrel@pupil] (0.07,1.76) ellipse[x radius=0.017, y radius=0.027];
+\squirrel@part@draw[\squirrel@pupil] (-0.07,1.76) ellipse[x radius=0.017, y radius=0.027];
 %
 % Mouth %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-\fill[white] (-0.025,1.567) rectangle ++(0.02,0.03);
-\fill[white] (0.025,1.567) rectangle ++(-0.02,0.03);
-\draw[\squirrel@body!70!brown!60!black,line width=\scalingfactor*0.4pt] (-0.15,1.61) .. controls (-0.15,1.61) and (-0.15,1.52) .. (0.0,1.61) .. controls (0.15,1.52) and (0.15,1.61) .. (0.15,1.61);
+\ifsquirrel@contour
+  \draw[\squirrel@contour,fill=white,line width=\scalingfactor*0.4pt] (-0.025,1.567) rectangle ++(0.02,0.03);
+  \draw[\squirrel@contour,fill=white,line width=\scalingfactor*0.4pt] (0.025,1.567) rectangle ++(-0.02,0.03);
+  \draw[\squirrel@contour,line width=\scalingfactor*0.4pt] (-0.15,1.61) .. controls (-0.15,1.61) and (-0.15,1.52) .. (0.0,1.61) .. controls (0.15,1.52) and (0.15,1.61) .. (0.15,1.61);
+\else
+  \fill[white] (-0.025,1.567) rectangle ++(0.02,0.03);
+  \fill[white] (0.025,1.567) rectangle ++(-0.02,0.03);
+  \draw[\squirrel@body!70!brown!60!black,line width=\scalingfactor*0.4pt] (-0.15,1.61) .. controls (-0.15,1.61) and (-0.15,1.52) .. (0.0,1.61) .. controls (0.15,1.52) and (0.15,1.61) .. (0.15,1.61);  
+\fi
 % 
 % Arms %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 \squirrel@part@draw[\squirrel@body!70!brown!50!darkgray] (0.2,0.85) ellipse[x radius=0.22, y radius=0.11, rotate=70];
diff --git a/Master/texmf-dist/tex/latex/tikzlings/tikzlings.sty b/Master/texmf-dist/tex/latex/tikzlings/tikzlings.sty
index 389849784aa..3e9778591d9 100644
--- a/Master/texmf-dist/tex/latex/tikzlings/tikzlings.sty
+++ b/Master/texmf-dist/tex/latex/tikzlings/tikzlings.sty
@@ -12,7 +12,14 @@
 % See http://www.latex-project.org/lppl.txt
 %
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-\ProvidesPackage{tikzlings}[2020/12/04 version v0.4 Collection of packages to draw animals and other beings in TikZ]
+\ProvidesPackage{tikzlings}[2021/03/17 version v0.5 Collection of packages to draw animals and other beings in TikZ]
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+% List of all TikZlings
+%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+\RequirePackage{tikzlings-list}
 
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 %
@@ -20,25 +27,21 @@
 %
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 \RequirePackage{tikz}
-\RequirePackage{tikzlings-bears}
-\RequirePackage{tikzlings-penguins}
-\RequirePackage{tikzlings-marmots}
-\RequirePackage{tikzlings-owls}
-\RequirePackage{tikzlings-koalas}
-\RequirePackage{tikzlings-coatis}
-\RequirePackage{tikzlings-snowmans}
-\RequirePackage{tikzlings-mice}
-\RequirePackage{tikzlings-moles}
-\RequirePackage{tikzlings-sloths}
-\RequirePackage{tikzlings-pigs}
-\RequirePackage{tikzlings-cats}
-\RequirePackage{tikzlings-hippos}
-\RequirePackage{tikzlings-rhinos}
-\RequirePackage{tikzlings-pandas}
-\RequirePackage{tikzlings-bees}
-\RequirePackage{tikzlings-anteaters}
-\RequirePackage{tikzlings-squirrels}
-\RequirePackage{tikzlings-sheep}
+
+% from https://chat.stackexchange.com/transcript/message/56515698#56515698
+\ExplSyntaxOn
+\cs_new_protected:Npn \tikzlings_load_packages:N #1 {
+  \clist_map_inline:Nn #1 {
+    \exp_args:Nx \RequirePackage { 
+      tikzlings- \__tikzlings_after_slash:w ##1 / / \s_stop 
+    }
+  }
+}
+\cs_new:Npn \__tikzlings_after_slash:w #1 / #2 / #3 \s_stop { \tl_trim_spaces:n {#2} }
+\cs_new_eq:NN \tikzling@loadpackages \tikzlings_load_packages:N
+\ExplSyntaxOff
+\tikzling@loadpackages\tikzling@list
+
 \RequirePackage{tikzlings-addons}
 
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
@@ -61,9 +64,30 @@
   \fi
   \pgfmathsetseed{\number\pdfrandomseed} 
 \fi
+
+% from https://chat.stackexchange.com/transcript/message/56516469#56516469
+% To be able to x-expand \iterateTikzlings, it has to be expandable, so no 'protected'.  Also \clist_map_inline:Nn is not expandable, so we have to use \clist_map_function:NN instead.
+\cs_new:Npn \tikzlings_iterate:N #1 { 
+  \clist_map_function:NN #1 \__tikzlings_braced_items:n 
+}
+% \__tikzlings_braced_items:n will receive each clist item, then:
+\cs_new:Npn \__tikzlings_braced_items:n #1 {
+  { % leave an open brace
+  % we don't want the x-expansion to expand the tikzling command, so we prevent expansion with \exp_not:c.  The 'c' variant is used so it builds a csname from its argument, before preventing the expansion: and the argument is what's before the '/'
+  \exp_not:c { 
+    \__tikzlings_before_slash:w #1 / \s_stop 
+  }
+  } % leave a close brace
+}
+\cs_new:Npn \__tikzlings_before_slash:w #1 / #2 \s_stop {
+  \tl_trim_spaces:n {#1} % make sure there are no spaces around the string
+}
+\cs_new_eq:NN \tikzling@iteraterandom \tikzlings_iterate:N
+\cs_new_eq:NN \ExpArgsNnx \exp_args:Nnx
+
 \ExplSyntaxOff
 
-\pgfmathdeclarerandomlist{tikzlings}{{\bear}{\penguin}{\marmot}{\owl}{\koala}{\coati}{\snowman}{\mouse}{\moles}{\sloth}{\pig}{\cat}{\hippo}{\rhino}{\bee}{\anteater}{\sheep}}
+\ExpArgsNnx\pgfmathdeclarerandomlist{tikzlings}{\tikzling@iteraterandom\tikzling@list}
 
 \newcommand{\tikzling}[1][]{%
   \pgfmathrandomitem{\tikzling@random}{tikzlings}%
author	Karl Berry <karl@freefriends.org>	2021-03-17 21:39:31 +0000
committer	Karl Berry <karl@freefriends.org>	2021-03-17 21:39:31 +0000
commit	33ae88e5a364265d921e4db20d33f86d401a095f (patch)
tree	d2d34a5e1e9bec0d7dcf76600fac0c77585d16b7 /Master/texmf-dist/tex/latex/tikzlings
parent	ea174d11ebe4836a256865f9b5c7f3b1e9b72d72 (diff)