diff --git a/clingraph.tex b/clingraph.tex
new file mode 100644
index 0000000..c459924
--- /dev/null
+++ b/clingraph.tex
@@ -0,0 +1,28 @@
+% ----------------------------------------------------------------------
+\begin{frame}[fragile,shrink=1]{Clingraph visualization}
+%
+\mbox{\texttt{\$ clingo coloring.lp --outf=2 |}}
+\mbox{\texttt{\;\; clingraph --viz-encoding viz.lp --out tex --type digraph }}
+\pause
+\small
+\begin{semiverbatim}
+
+edge((X,Y)):- edge(X,Y), not edge(Y,X).
+edge((X,Y)):- edge(X,Y), edge(Y,X), Y>X.
+\pause
+attr(edge,(X,Y),dir,both)       :- edge(X,Y), edge(Y,X), Y>X.
+attr(edge,(X,Y),color,"#fff49e"):- edge((X,Y)).
+attr(node,X,color,"#fff49e")    :- node(X).
+\pause
+color_name(r, "red"). color_name(b, "blue").
+color_name(g, "green").
+attr(node, N, style, filled) :- node(N).
+attr(node, N, fillcolor, S)  :- assign(N, C), color_name(C, S).
+\end{semiverbatim}
+\end{frame}
+% ----------------------------------------------------------------------
+%
+%%% Local Variables:
+%%% mode: latex
+%%% TeX-master: "../../main"
+%%% End:
diff --git a/encodings/clingraph-coloring.lp b/encodings/clingraph-coloring.lp
new file mode 100644
index 0000000..757c6a7
--- /dev/null
+++ b/encodings/clingraph-coloring.lp
@@ -0,0 +1,13 @@
+% Not so relevant, just for nicer layout
+attr(graph,default, rankdir, "LR").
+attr(graph,default, nodesep, "0.2").
+
+
+edge((X,Y)):- edge(X,Y), not edge(Y,X).
+edge((X,Y)):- edge(X,Y), edge(Y,X), Y>X.
+attr(edge,(X,Y),dir,both):- edge(X,Y), edge(Y,X), Y>X.
+attr(edge,(X,Y),color,"#fff49e"):- edge((X,Y)).
+attr(node,X,color,"#fff49e"):- node(X).
+attr(node, N, style, filled):- node(N).
+color_name(r, "red"). color_name(b, "blue"). color_name(g, "green").
+attr(node, N, fillcolor, NAME) :- assign(N, C), color_name(C, NAME).
diff --git a/encodings/coloring-instance.lp b/encodings/coloring-instance.lp
new file mode 100644
index 0000000..082ad6a
--- /dev/null
+++ b/encodings/coloring-instance.lp
@@ -0,0 +1,12 @@
+node(1..6).
+edge(1,2).  edge(1,3).  edge(1,4).
+edge(2,4).  edge(2,5).  edge(2,6).
+edge(3,1).  edge(3,4).  edge(3,5).
+edge(4,1).  edge(4,2).
+edge(5,3).  edge(5,4).  edge(5,6).
+edge(6,2).  edge(6,3).  edge(6,5).
+color(r).   color(b).   color(g).
+
+assign(6,b). assign(5,r). assign(4,b). assign(3,g). assign(2,g). assign(1,r).
+% { assign(N,C) : color(C) } = 1 :- node(N).
+% :- edge(N,M), assign(N,C), assign(M,C).
diff --git a/figures/fig-graph-colored.tex b/figures/fig-graph-colored.tex
index 9f51635..b76aaaf 100644
--- a/figures/fig-graph-colored.tex
+++ b/figures/fig-graph-colored.tex
@@ -1,28 +1,98 @@
-% ----------------------------------------------------------------------
-\begin{tikzpicture}[
-  x=1pt,y=1pt,
-  >=stealth',
-  vertex/.style={draw,minimum width=16,minimum height=16,inner sep=0,circle},
-  ]
-  \begin{scope}[every node/.style={vertex}]
-    \node [fill=red]   (1) at ( 80,75 ) {1};
-    \node [fill=green] (2) at (200,75 ) {2};
-    \node [fill=green] (3) at ( 80,145) {3};
-    \node [fill=blue]  (4) at (140,25 ) {4};
-    \node [fill=red]   (5) at (200,145) {5};
-    \node [fill=blue]  (6) at (140,110) {6};
-  \end{scope}
-  \path[->]
-  (1) edge [->]  (2) edge [<->] (3) edge [<->] (4)
-  (2) edge [<->] (4) edge [->]  (5) edge [<->] (6)
-  (3) edge [->,bend right=60,looseness=1.5]  (4) edge [<->] (5) edge [<-]  (6)
-  (4) edge [<-,bend right=60,looseness=1.5]  (5)
-  (5) edge [<->] (6)
-  ;
-\end{tikzpicture}
-% ----------------------------------------------------------------------
+\begin{tikzpicture}[>=latex',line join=bevel,scale=0.5]
+ \pgfsetlinewidth{1bp}
+%%
+\pgfsetcolor{black}
+  % Edge: 1 -> 2
+  \definecolor{newcol}{rgb}{1.0,0.96,0.62};
+  \pgfsetcolor{newcol}
+  \draw [->] (46.663bp,42.724bp) .. controls (58.68bp,50.918bp) and (74.522bp,61.719bp)  .. (97.364bp,77.294bp);
+  % Edge: 1 -> 3
+  \draw [<->] (53.74bp,26.947bp) .. controls (122.23bp,20.836bp) and (234.61bp,16.19bp)  .. (324.0bp,45.0bp) .. controls (336.97bp,49.182bp) and (349.88bp,56.8bp)  .. (369.61bp,70.995bp);
+  % Edge: 1 -> 4
+  \draw [<->] (52.544bp,23.193bp) .. controls (99.066bp,11.677bp) and (155.95bp,0.0000bp)  .. (206.0bp,0.0bp) .. controls (206.0bp,0.0bp) and (206.0bp,0.0bp)  .. (298.0bp,0.0bp) .. controls (365.4bp,0.0bp) and (426.4bp,59.881bp)  .. (463.69bp,103.82bp);
+  % Edge: 2 -> 4
+  \draw [<->] (132.76bp,104.91bp) .. controls (152.07bp,121.13bp) and (165.77bp,130.38bp)  .. (180.0bp,135.0bp) .. controls (270.43bp,164.36bp) and (384.52bp,143.52bp)  .. (451.84bp,126.91bp);
+  % Edge: 2 -> 5
+  \draw [->] (142.98bp,95.678bp) .. controls (151.34bp,97.578bp) and (160.84bp,99.736bp)  .. (180.96bp,104.31bp);
+  % Edge: 2 -> 6
+  \draw [<->] (143.88bp,87.092bp) .. controls (185.26bp,82.442bp) and (228.15bp,77.624bp)  .. (270.09bp,72.912bp);
+  % Edge: 3 -> 4
+  \draw [->] (410.66bp,94.013bp) .. controls (420.34bp,97.862bp) and (431.83bp,102.43bp)  .. (453.11bp,110.9bp);
+  % Edge: 3 -> 5
+  \draw [<->] (360.39bp,89.316bp) .. controls (340.87bp,92.463bp) and (332.14bp,93.817bp)  .. (324.0bp,95.0bp) .. controls (297.65bp,98.828bp) and (267.85bp,102.67bp)  .. (233.83bp,106.89bp);
+  % Edge: 5 -> 4
+  \draw [->] (234.18bp,110.98bp) .. controls (281.92bp,112.76bp) and (383.23bp,116.54bp)  .. (449.71bp,119.02bp);
+  % Edge: 5 -> 6
+  \draw [<->] (229.75bp,100.11bp) .. controls (247.85bp,91.888bp) and (256.06bp,88.153bp)  .. (274.19bp,79.913bp);
+  % Edge: 6 -> 3
+  \draw [->] (323.45bp,74.339bp) .. controls (331.5bp,75.71bp) and (340.56bp,77.255bp)  .. (360.3bp,80.619bp);
+  % Node: 1
+\begin{scope}
+  \definecolor{strokecol}{rgb}{1.0,0.96,0.62};
+  \pgfsetstrokecolor{strokecol}
+  \definecolor{fillcol}{rgb}{1.0,0.0,0.0};
+  \pgfsetfillcolor{fillcol}
+  \filldraw [opacity=1] (27.0bp,30.0bp) ellipse (27.0bp and 18.0bp);
+  \definecolor{strokecol}{rgb}{0.0,0.0,0.0};
+  \pgfsetstrokecolor{strokecol}
+  \draw (27.0bp,30.0bp) node {1};
+\end{scope}
+  % Node: 2
+\begin{scope}
+  \definecolor{strokecol}{rgb}{1.0,0.96,0.62};
+  \pgfsetstrokecolor{strokecol}
+  \definecolor{fillcol}{rgb}{0.0,1.0,0.0};
+  \pgfsetfillcolor{fillcol}
+  \filldraw [opacity=1] (117.0bp,90.0bp) ellipse (27.0bp and 18.0bp);
+  \definecolor{strokecol}{rgb}{0.0,0.0,0.0};
+  \pgfsetstrokecolor{strokecol}
+  \draw (117.0bp,90.0bp) node {2};
+\end{scope}
+  % Node: 3
+\begin{scope}
+  \definecolor{strokecol}{rgb}{1.0,0.96,0.62};
+  \pgfsetstrokecolor{strokecol}
+  \definecolor{fillcol}{rgb}{0.0,1.0,0.0};
+  \pgfsetfillcolor{fillcol}
+  \filldraw [opacity=1] (387.0bp,85.0bp) ellipse (27.0bp and 18.0bp);
+  \definecolor{strokecol}{rgb}{0.0,0.0,0.0};
+  \pgfsetstrokecolor{strokecol}
+  \draw (387.0bp,85.0bp) node {3};
+\end{scope}
+  % Node: 4
+\begin{scope}
+  \definecolor{strokecol}{rgb}{1.0,0.96,0.62};
+  \pgfsetstrokecolor{strokecol}
+  \definecolor{fillcol}{rgb}{0.0,0.0,1.0};
+  \pgfsetfillcolor{fillcol}
+  \filldraw [opacity=1] (477.0bp,120.0bp) ellipse (27.0bp and 18.0bp);
+  \definecolor{strokecol}{rgb}{0.0,0.0,0.0};
+  \pgfsetstrokecolor{strokecol}
+  \draw (477.0bp,120.0bp) node {4};
+\end{scope}
+  % Node: 5
+\begin{scope}
+  \definecolor{strokecol}{rgb}{1.0,0.96,0.62};
+  \pgfsetstrokecolor{strokecol}
+  \definecolor{fillcol}{rgb}{1.0,0.0,0.0};
+  \pgfsetfillcolor{fillcol}
+  \filldraw [opacity=1] (207.0bp,110.0bp) ellipse (27.0bp and 18.0bp);
+  \definecolor{strokecol}{rgb}{0.0,0.0,0.0};
+  \pgfsetstrokecolor{strokecol}
+  \draw (207.0bp,110.0bp) node {5};
+\end{scope}
+  % Node: 6
+\begin{scope}
+  \definecolor{strokecol}{rgb}{1.0,0.96,0.62};
+  \pgfsetstrokecolor{strokecol}
+  \definecolor{fillcol}{rgb}{0.0,0.0,1.0};
+  \pgfsetfillcolor{fillcol}
+  \filldraw [opacity=1] (297.0bp,70.0bp) ellipse (27.0bp and 18.0bp);
+  \definecolor{strokecol}{rgb}{0.0,0.0,0.0};
+  \pgfsetstrokecolor{strokecol}
+  \draw (297.0bp,70.0bp) node {6};
+\end{scope}
 %
-%%% Local Variables:
-%%% mode: latex
-%%% TeX-master: "../../../main"
-%%% End:
+\end{tikzpicture}
+
+
diff --git a/figures/fig-graph.tex b/figures/fig-graph.tex
index 0c53dba..3b4b483 100644
--- a/figures/fig-graph.tex
+++ b/figures/fig-graph.tex
@@ -1,28 +1,85 @@
-% ----------------------------------------------------------------------
-\begin{tikzpicture}[
-  x=1pt,y=1pt,
-  >=stealth',
-  vertex/.style={draw,minimum width=16,minimum height=16,inner sep=0,circle},
-  ]
-  \begin{scope}[every node/.style={vertex}]
-    \node (1) at ( 80,75 ) {1};
-    \node (2) at (200,75 ) {2};
-    \node (3) at ( 80,145) {3};
-    \node (4) at (140,25 ) {4};
-    \node (5) at (200,145) {5};
-    \node (6) at (140,110) {6};
-  \end{scope}
-  \path
-  (1) edge [->]  (2) edge [<->] (3) edge [<->] (4)
-  (2) edge [<->] (4) edge [->]  (5) edge [<->] (6)
-  (3) edge [->,bend right=60,looseness=1.5]  (4) edge [<->] (5) edge [<-]  (6)
-  (4) edge [<-,bend right=60,looseness=1.5]  (5)
-  (5) edge [<->] (6)
-  ;
-\end{tikzpicture}
-% ----------------------------------------------------------------------
+\begin{tikzpicture}[>=latex',line join=bevel,scale=0.5]
+  \pgfsetlinewidth{1bp}
+%%
+\pgfsetcolor{black}
+  % Edge: 1 -> 3
+  \definecolor{newcol}{rgb}{1.0,0.96,0.62};
+  \pgfsetcolor{newcol}
+  \draw [<->] (54.403bp,99.193bp) .. controls (69.955bp,99.193bp) and (74.163bp,99.193bp)  .. (89.616bp,99.193bp);
+  % Edge: 1 -> 4
+  \draw [<->] (49.184bp,110.09bp) .. controls (69.016bp,118.51bp) and (79.735bp,122.2bp)  .. (90.0bp,124.19bp) .. controls (106.85bp,127.46bp) and (219.35bp,124.44bp)  .. (234.0bp,122.19bp) .. controls (243.19bp,120.78bp) and (252.94bp,118.39bp)  .. (272.77bp,112.49bp);
+  % Edge: 1 -> 2
+  \draw [->] (46.663bp,86.468bp) .. controls (58.68bp,78.275bp) and (74.522bp,67.473bp)  .. (97.364bp,51.899bp);
+  % Edge: 3 -> 4
+  \draw [->] (143.2bp,104.7bp) .. controls (154.41bp,106.88bp) and (167.8bp,109.12bp)  .. (180.0bp,110.19bp) .. controls (206.34bp,112.51bp) and (236.14bp,110.88bp)  .. (270.16bp,107.59bp);
+  % Edge: 3 -> 5
+  \draw [<->] (134.97bp,85.696bp) .. controls (155.24bp,69.572bp) and (168.46bp,59.051bp)  .. (188.78bp,42.887bp);
+  % Edge: 2 -> 4
+  \draw [<->] (141.27bp,47.69bp) .. controls (183.72bp,63.191bp) and (230.66bp,80.332bp)  .. (272.72bp,95.693bp);
+  % Edge: 2 -> 5
+  \draw [->] (143.93bp,36.246bp) .. controls (151.65bp,35.369bp) and (160.26bp,34.39bp)  .. (179.95bp,32.152bp);
+  % Edge: 2 -> 6
+  \draw [<->] (135.91bp,25.79bp) .. controls (155.85bp,13.422bp) and (167.99bp,7.3496bp)  .. (180.0bp,4.1925bp) .. controls (203.21bp,-1.9069bp) and (210.44bp,-0.37878bp)  .. (234.0bp,4.1925bp) .. controls (244.26bp,6.1841bp) and (254.98bp,9.8703bp)  .. (274.82bp,18.293bp);
+  % Edge: 5 -> 4
+  \draw [->] (224.55bp,43.299bp) .. controls (237.58bp,54.404bp) and (255.96bp,70.064bp)  .. (279.52bp,90.149bp);
+  % Edge: 5 -> 6
+  \draw [<->] (234.4bp,29.193bp) .. controls (249.95bp,29.193bp) and (254.16bp,29.193bp)  .. (269.62bp,29.193bp);
+  % Edge: 6 -> 3
+  \draw [->] (273.35bp,38.407bp) .. controls (261.62bp,43.159bp) and (247.06bp,49.027bp)  .. (234.0bp,54.193bp) .. controls (206.21bp,65.186bp) and (174.57bp,77.441bp)  .. (140.71bp,90.486bp);
+  % Node: 1
+\begin{scope}
+  \definecolor{strokecol}{rgb}{1.0,0.96,0.62};
+  \pgfsetstrokecolor{strokecol}
+  \draw (27.0bp,99.19bp) ellipse (27.0bp and 18.0bp);
+  \definecolor{strokecol}{rgb}{0.0,0.0,0.0};
+  \pgfsetstrokecolor{strokecol}
+  \draw (27.0bp,99.193bp) node {1};
+\end{scope}
+  % Node: 3
+\begin{scope}
+  \definecolor{strokecol}{rgb}{1.0,0.96,0.62};
+  \pgfsetstrokecolor{strokecol}
+  \draw (117.0bp,99.19bp) ellipse (27.0bp and 18.0bp);
+  \definecolor{strokecol}{rgb}{0.0,0.0,0.0};
+  \pgfsetstrokecolor{strokecol}
+  \draw (117.0bp,99.193bp) node {3};
+\end{scope}
+  % Node: 4
+\begin{scope}
+  \definecolor{strokecol}{rgb}{1.0,0.96,0.62};
+  \pgfsetstrokecolor{strokecol}
+  \draw (297.0bp,104.19bp) ellipse (27.0bp and 18.0bp);
+  \definecolor{strokecol}{rgb}{0.0,0.0,0.0};
+  \pgfsetstrokecolor{strokecol}
+  \draw (297.0bp,104.19bp) node {4};
+\end{scope}
+  % Node: 2
+\begin{scope}
+  \definecolor{strokecol}{rgb}{1.0,0.96,0.62};
+  \pgfsetstrokecolor{strokecol}
+  \draw (117.0bp,39.19bp) ellipse (27.0bp and 18.0bp);
+  \definecolor{strokecol}{rgb}{0.0,0.0,0.0};
+  \pgfsetstrokecolor{strokecol}
+  \draw (117.0bp,39.193bp) node {2};
+\end{scope}
+  % Node: 5
+\begin{scope}
+  \definecolor{strokecol}{rgb}{1.0,0.96,0.62};
+  \pgfsetstrokecolor{strokecol}
+  \draw (207.0bp,29.19bp) ellipse (27.0bp and 18.0bp);
+  \definecolor{strokecol}{rgb}{0.0,0.0,0.0};
+  \pgfsetstrokecolor{strokecol}
+  \draw (207.0bp,29.193bp) node {5};
+\end{scope}
+  % Node: 6
+\begin{scope}
+  \definecolor{strokecol}{rgb}{1.0,0.96,0.62};
+  \pgfsetstrokecolor{strokecol}
+  \draw (297.0bp,29.19bp) ellipse (27.0bp and 18.0bp);
+  \definecolor{strokecol}{rgb}{0.0,0.0,0.0};
+  \pgfsetstrokecolor{strokecol}
+  \draw (297.0bp,29.193bp) node {6};
+\end{scope}
 %
-%%% Local Variables:
-%%% mode: latex
-%%% TeX-master: "../../../main"
-%%% End:
+\end{tikzpicture}
+% End of code
diff --git a/workflow-example-coloring.tex b/workflow-example-coloring.tex
index 695f152..b86c3b0 100644
--- a/workflow-example-coloring.tex
+++ b/workflow-example-coloring.tex
@@ -161,6 +161,9 @@
 % ----------------------------------------------------------------------
 \input{modeling/workflow-solution}
 % ----------------------------------------------------------------------
+% ----------------------------------------------------------------------
+\input{modeling/clingraph}
+% ----------------------------------------------------------------------
 %
 %%% Local Variables:
 %%% mode: latex