I am using beamer and TikZ and would like to change the color and thickness of an edge in the second slide of the same frame. Here is what I tried:  \documentclass{beamer}  \usepackage{tikz} \usetikzlibrary{shapes,shapes.geometric,arrows,fit,calc,positioning,automata}  \begin{document}  \frame{     \newcommand*\properties{}     \only&lt;2&gt;{\renewcommand*{\properties}{orange, ultra thick}}     \begin{figure}         \begin{tikzpicture}[node distance = 1.5cm, scale=0.8]          \node (1) {1};         \node[right = of 1] (2) {2};          \path[-&gt;]         (1) edge[\properties] (2);          \end{tikzpicture}     \end{figure} }  \end{document}   The strange thing is that when I put only orange or only ultra thick in the definition of \properties, everything works as expected. In addition, if I just put orange, ultra thick together in the bracket that follows edge, it is still fine (and of course in this case the edge has the same look on both slides). But when I have both of them there, an error occurs:     Package pgfkeys Error: I do not know the key '/tikz/orange, ultra thick' and I am going to ignore it. Perhaps you misspelled it.   May I know why this is the case? How should I correct it to achieve the desired result (i.e., the edge turning both orange and thicker on the second slide)? Thank you!
123832
I have a matrix initialized with some colors and no values. With the help of beamer's overlays I wanted to modify the matrix in the next step, changing some of the colors and inserting some values. I attach a figure, so you can get a clear picture of what I want to achieve (on the top you have the empty matrix, and on the bottom the matrix after it has been filled in):    I have tried to overwrite the whole matrix with a new one, but that has several problems:   Text like "Some label" gets overwritten and looks thicker in the second slide. If I need to do N steps, instead of just 2, rewriting the whole matrix every time is really tedious.   I know I am not really aware of all the possibilities in TikZ and Beamer, so there might something there that I am missing, and that would allow me to do what I want. Does anyone know what can I do in order to update the matrix nodes between the overlay steps?
2951
I would like to have in beamer something like  \begin{frame} The two main reasons are :  \begin{itemize} \item First reason \pause  \item Second reason \end{itemize} \end{frame}   But I would like to insert an image to illustrate the first reason, that would be on another slide, without altering the display of my presentation.  I would therefore like to have   Slide n : slide a with first item shown Slide n+1 : slide b with an image to illustrate this first item  Slide n+2 : slide a with the two items displayed   How would it be possible ? And additionnaly would it be possible for the slide b not to be numbered ?
99685
I am trying to make slides with a tikz picture followed by some text. I am defining a makeup to get vertical centering. Through some trial and error, I found that setting the background color of the page seems to hide the text after the tikz picture and I have no clue what's going on.  Minimal example (Test2 does not show up for me):  %&amp;context  % Loading tikz \usemodule[tikz] \usemodule[pgfplots]  \setupbackgrounds[page][background=color,backgroundcolor=white]  % Defining centered slides \definemakeup[center]  \definestartstop [CenterSlide] [before={\page\startcentermakeup},   after=\stopcentermakeup\page]  \starttext  \startCenterSlide  \starttikzpicture \node[draw] (test) {Test1}; \stoptikzpicture \\  Test2 %&lt;- I don't see this show up  \stopCenterSlide  \stoptext   I have 3 ways of making Test2 show up, none of which are really acceptable:   Remove \setupbackgrounds (but I would like to have a non-white background color) Remove the makeup (which might suggest the nature of the problem, but I thought makeup was the right way to define slides) Add any text before the \startikzpicture (again, might be indicative of something, but I want the option to have the diagram on the very top)   Could someone correct what I'm doing wrong or explain what's going on?  Update:  Based on the comment by @Ulrike Fischer, I can confirm that the issue seems to be with the color of the text. Forcing the text color makes Test2 show up:  \definecolor[myblack][c=0, m=.6, y=.3, k=100] \color[myblack]{Test2} %&lt;- This now shows up   Setting the color with \startcolor seems to also work in the minimal example, but not in my real document (suggesting that there are other interactions). Using a normally defined black also doesn't work.
109170
In a beamer presentation, I’d like to set up different colors for normal blocks, definition blocks, theorem blocks, proof blocks, example blocks…  Ideally I’d set those up using \usebeamercolor commands. I can do it for example blocks, and for all other kinds of blocks at once, as illustrated in the sample below (compiled using XeLaTeX). But I can’t find how to do it for specific, non-example, types of blocks.  I suppose “” points towards some solution, but I’d prefer (somehow) inheriting from the existing special block environment definitions rather than define new environments from scratch.  \documentclass{beamer} \usepackage{fontspec}  \useinnertheme[shadow=true]{rounded}  \setbeamercolor{block title}{use=structure,fg=structure.fg,bg=structure.fg!20!bg} \setbeamercolor{block body}{parent=normal text,use=block title,bg=block title.bg!50!bg}  \setbeamercolor{block title example}{use=example text,fg=example text.fg,bg=example text.fg!20!bg} \setbeamercolor{block body example}{parent=normal text,use=block title example,bg=block title example.bg!50!bg}  \begin{document} \begin{frame}     \begin{block}{My block}         A block.     \end{block}     \begin{definition}[My definition]         A definition.     \end{definition}     \begin{theorem}[My theorem]         A theorem.     \end{theorem}     \begin{proof}[My proof]         A proof.     \end{proof}     \begin{example}[My example]         An example.     \end{example} \end{frame} \end{document}
111194
This is a follow up question to  to that post.    Although I got there work in LaTeX document perfectly fine, I could not get it work in beamer. Here's Jake's code but using beamer:  \documentclass{beamer} \usepackage{tikz} \usetikzlibrary{patterns} \usepackage{pgfplots}  \begin{document}  \begin{frame}     \begin{tikzpicture}     \tikzset{         hatch distance/.store in=\hatchdistance,         hatch distance=10pt,         hatch thickness/.store in=\hatchthickness,         hatch thickness=2pt     }      \makeatletter     \pgfdeclarepatternformonly[\hatchdistance,\hatchthickness]{flexible hatch}     {\pgfqpoint{0pt}{0pt}}     {\pgfqpoint{\hatchdistance}{\hatchdistance}}     {\pgfpoint{\hatchdistance-1pt}{\hatchdistance-1pt}}%     {         \pgfsetcolor{\tikz@pattern@color}         \pgfsetlinewidth{\hatchthickness}         \pgfpathmoveto{\pgfqpoint{0pt}{0pt}}         \pgfpathlineto{\pgfqpoint{\hatchdistance}{\hatchdistance}}         \pgfusepath{stroke}     }      \begin{axis}[         xmin=-4,xmax=4,         xlabel={z},         ymin=0,ymax=1,         axis on top,         legend style={legend cell align=right,legend plot pos=right}]      \addplot[color=red,domain=-4:4,samples=100] {1/sqrt(2*pi)*exp(-x^2/2)};     \addlegendentry{z}     \addplot+[mark=none,         domain=0:1,         samples=100,         pattern=flexible hatch,         area legend,         pattern color=red]{1/sqrt(2*pi)*exp(-x^2/2)} \closedcycle;     \addlegendentry{Interval 1}     \addplot+[mark=none,         domain=-2:-0.5,         samples=100,         pattern=flexible hatch,         hatch distance=5pt,         hatch thickness=0.5pt,         draw=blue,         pattern color=cyan,         area legend]{1/sqrt(2*pi)*exp(-x^2/2)} \closedcycle;             \addlegendentry{Interval 2}     \end{axis} \end{tikzpicture} \end{frame} \end{document}   It seems the system never finish compiling. I not sure whether it is just my system or it is a more general problem?   Meanwhile,  there does work in beamer.
76791
I have a set of two nodes and I would like to draw tight ellipses around them in my tikz picture. Note that this is part of a beamer presentation.    I have attached an image that illustrates the wanted effect.    Here is what I have so far:  \documentclass[10pt,aspectratio=1610]{beamer} \usepackage{tikz} \usetikzlibrary{shapes,arrows,backgrounds,fit,positioning}  \begin{document}  \tikzset{res/.style={ellipse,draw,minimum height=0.5cm,minimum width=0.8cm}} \tikzset{literal/.style={rectangle,draw,minimum height=0.5cm,minimum width=0.8cm,text width = 1.2 cm, align = center}}  \begin{frame}[fragile]{Example}{} \begin{tikzpicture}[node distance = 2 cm,auto, ] \node[res,] (obs1) {\footnotesize :obs1} ; \node[res, left = 1cm of obs1] (shop1) {\footnotesize :shop1} ; \node[literal, left = 1cm of shop1] (shopName1) {\footnotesize ``Barnes \&amp; Noble''} ; \node[res, above of = shop1] (book1) {\footnotesize :book1} ; \node[literal, left = 1cm of book1] (bookName1) {\footnotesize ``Dune''} ; \node[res, below of = obs1] (obs2) {\footnotesize :obs2} ; \node[res, left = 1cm of obs2] (shop2) {\footnotesize :shop2} ; \node[literal, left = 1cm of shop2] (shopName2) {\footnotesize ``Amazon''} ; \node[res, below of = shop2] (book2) {\footnotesize :book2} ; \node[literal, left = 1cm of book2] (bookName2) {\footnotesize ``Dracula''} ; \node[literal, below of = obs2] (measure2) {\footnotesize 12} ; \node[literal, above of = obs1] (measure1) {\footnotesize 7} ; \node[literal, right = 1cm of obs1] (monthName) {\footnotesize ``January''} ; \node[literal, right = 1cm of measure1] (yearNum) {\footnotesize ``2016''} ; \node[res, right = 1cm of monthName] (month) {\footnotesize :january2016} ; \node[res, above of = month] (year) {\footnotesize :2016} ; \node[res, below of = month] (day) {\footnotesize :date31012016} ;  \path[-&gt;,draw]     (obs1) edge node[midway,above=-6pt,fill=white,inner sep=0pt] {\footnotesize :shop} (shop1)     (obs2) edge node[midway,above=-6pt,fill=white,inner sep=0pt] {\footnotesize :shop} (shop2)      (obs1) edge node[midway,above=-6pt,fill=white] {\footnotesize :book} (book1)     (obs2) edge node[midway,above=-6pt,fill=white] {\footnotesize :book} (book2)      (book1) edge node[midway,above=-6pt,fill=white,inner sep=0pt] {\footnotesize :name} (bookName1)     (book2) edge node[midway,above=-6pt,fill=white,inner sep=0pt] {\footnotesize :name} (bookName2)      (shop1) edge node[midway,above=-6pt,fill=white] (title1) {\footnotesize :title} (shopName1)     (shop2) edge node[midway,above=-6pt,fill=white] (title2) {\footnotesize :title} (shopName2)      (obs1) edge node[midway,above=-6pt,fill=white] {\footnotesize :price} (measure1)     (obs2) edge node[midway,above=-6pt,fill=white] {\footnotesize :price} (measure2)      (obs1) edge node[midway,above=-6pt,fill=white]  {\footnotesize :date} (day)     (obs2) edge node[midway,above=-6pt,fill=white] {\footnotesize :date} (day)      (day) edge node[midway,above=-6pt,fill=white] {\footnotesize skos:broader} (month)     (month) edge node[midway,above=-6pt,fill=white] {\footnotesize skos:broader} (year)      (month) edge node[midway,above=-6pt,fill=white,inner sep=0pt] {\footnotesize :month} (monthName)     (year) edge node[midway,above=-6pt,fill=white] {\footnotesize :year} (yearNum)     ;  \begin{pgfonlayer}{background}   \node[fit=(shopName1)(shop1), fill=violet!30,ellipse] {};   \node[fit=(shopName2)(shop2), fill=violet!30,ellipse] {};   \node[fit=(bookName2)(book2), fill=violet!30,ellipse] {};   \node[fit=(bookName1)(book1), fill=violet!30,ellipse] {};   \node[fit=(measure1)(obs1), fill=blue!30,ellipse] {};   \node[fit=(measure2)(obs2), fill=blue!30,ellipse] {};   \node[fit=(year)(yearNum), fill=green!30,ellipse] {};   \node[fit=(month)(monthName), fill=green!30,ellipse] {}; \end{pgfonlayer} \end{tikzpicture} \end{frame} \end{document}   Here is the result that it produce    Note how the ellipses do not fit the nodes but cover much more. How can I create a tight ellipse around a pair of nodes?
48091
I'm in the following situation: Using TikZ, I have drawn a curve which is fairly simply described:  \documentclass{article} \usepackage{tikz} \begin{document} \begin{tikzpicture} \draw (1,1.5) .. controls (1,2.25) and (-1,2.25) .. (-1,2)         node[pos=0,anchor=west]{-1}         .. controls (-1,1.75) and (1,1.75) .. (1,2.5)         node[pos=1,anchor=west]{0}         .. controls (1,3.25) and (-1,3.25) .. (-1,3)         .. controls (-1,2.75) and (1,2.75) .. (1,3.5)         node[pos=1,anchor=west]{1}; \end{tikzpicture} \end{document}   However, now I'd like to specify a different style for part of this curve; It happens that the part of this curve I'd like to do something special with is not easily described explicitly. In this particular case, I'd like to apply the style [(-),thick,red] to some arbitrary segment of the curve. I'm looking for an efficient and simple way to do just that.  I was hoping that there might be an option to do something along the lines of \draw[only between 0.2 and 0.8] "curve description", but I'm not aware of any such possibilities.   For extra concreteness, here is a (Paint-made) picture of something like what I'm looking for:
83929
I'd like to apply thickness to my plot, similarly to what's shown in the image on the right.    \documentclass[border=5mm]{standalone}    \usepackage{pgfplots} \pgfplotsset{compat=1.13} \usepgfplotslibrary{colorbrewer}  \begin{document} \begin{tikzpicture}[yscale=1] \begin{axis}[ domain=-180:180, samples=50, colormap/PiYG, colorbar, colorbar style={     title=Color key,     ylabel=Z-value,     ytick={-1,-0.75,...,1},     yticklabel style={         text width=2.5em,         align=right,         /pgf/number format/.cd,             fixed,             fixed zerofill         }     } ] \addplot3 [surf] { cos(x)*cos(y) / 5}; \end{axis} \end{tikzpicture} \end{document}
41724
For use as a headline in beamer, I would like to scale the following tikz image to \paperwidth, preserving the x-y-ratio. I seem to be too dumb to find this (easy?!) solution... Thanks for any help!  Example:  \documentclass{beamer} \usepackage{tikz} \begin{document} \begin{frame}{A Frame} \begin{tikzpicture} % \draw[color=blue, fill=blue] (0,0) .. controls (5.30, 1.76) and (10.55, 1.32) .. (10.61, 1.32) -- (10.61, 1.75) -- (0,1.75) -- (0,0);         \end{tikzpicture} \end{frame} \end{document}
124185
I'm trying to create my first presentation with the beamer class. I saw that is possible to change the color (for example) of a part of text with overlays. I'm using {\alert{&lt;...&gt;}{text}} to highlight some constants inside a formula, and I noticed some issues:   To have the frame title in the index on the right (for the Goettingen theme) I have to insert a \section{...} with the same title. Is it correct? Because this section seems "useless" to me, since there is already the frame title (however, if this is the case, I'll stick with it). When I use {\alert{&lt;2-&gt;}{text}} it produce another slide inside the frame; this is fine, since it works in the presentation. However, this command creates another title in the index on the right, and this will be shown even in the presentation. Is there a way to have only one item per, let's say, frame in the index created by the theme?   This is my code:  \documentclass{beamer} \let\Tiny=\tiny  \usetheme{Goettingen}  \title{Title} \author{Me} \date{\today}  \begin{document} \begin{frame}     \titlepage \end{frame} \begin{frame}     \frametitle{First frame}     \section{First frame}     \begin{itemize}         \item Item 1         \[{\alpha = \alert&lt;2-&gt;{k_1}}\]         \item Item 2         \[{\alpha = \alert&lt;2-&gt;{k_2}}\]     \end{itemize} \end{frame} \begin{frame}     \frametitle{Second frame}     \section{Second frame}     \begin{itemize}         \item Item 1         \[{\alpha = \alert&lt;2-&gt;{k_1}}\]         \item Item 2         \[{\alpha = \alert&lt;2-&gt;{k_2}}\]     \end{itemize} \end{frame} \end{document}   Thanks to everyone!
117605
Below is my example. I'd like to use a global style for all my tikz pictures to set up the line width. It is working well until I use a clip. I guess that it is not possible to pass some style option to clip. The code below gives the error msg   Package tikz Error: Extra options not allowed for clipping path command. \clip (2,0) circle (2cm);   Here is the MWE.  \documentclass{article} \usepackage{tikz} \tikzset{every path/.style={line width=2pt}} \begin{document} \begin{tikzpicture} \clip (2,0) circle (2cm); \draw (0,0) circle (3cm); \end{tikzpicture} \end{document}   Any help?
29311
How do I pass two parameters to a tikz style?  I would like to do something like this:  \begin{tikzpicture}[     transformer/.style={draw, cylinder, gray!80, rotate=90, minimum height=#1, minimum width=#2},   And then, I want to use this style in a node:  \node [transformer{2.3cm}{1cm}] () at (0,0.6) {};
57760
I'm nesting a tikzpicture inside a tikzpicture, and having problems with the 'text width' parameter leaking through from the outer tikzpicture to the inner. (The nesting is pretty much unavoidable -- in my actual use case the tikzpicture s are defined in different macros.)   MWE:  \documentclass[a4paper,11pt,landscape]{article} \usepackage{tikz,nopageno}  \begin{document}  \newcommand{\cost}{% \begin{tikzpicture}     \node[fill=red!85!black,shape=circle,inner sep=0.3mm,draw=black,text=white] {\raisebox{0pt}[\height][0pt]{\bf 1}}; \end{tikzpicture}}  \cost  \begin{tikzpicture}     \node[text width=10mm] {\cost}; \end{tikzpicture}  \end{document}     How should I modify 'cost' so that it behaves as if text width was not set?
22147
In the PGF/TikZ manual, sometimes I see the option right of=somenode instead of right=of somenode. They look very similar, but the effects are different.  The distance between nodes positioned with the latter option is boundary-to-boundary, as stated in the manual. However, with the first option, it seems that the distance is shorter. I couldn't find any explanation of the first option in the manual.  My question is: what is the difference between the two options? Is there any explanation in the manual that I missed?
121174
I have a beamer slide where I have an image changing along with the text in the next column. For example:  \frame{\frametitle{testing cols} \begin{columns}[t] \column{5cm}  \begin{itemize} \item On the next column you see a pic\pause \item Pic is getting bigger! \pause \item And it got even more big!  \end{itemize}  \column[T]{10cm} \includegraphics&lt;1&gt;[width=20mm]{pic.png} \includegraphics&lt;2&gt;[width=30mm]{pic.png} \includegraphics&lt;3&gt;[width=40mm]{pic.png} \end{columns} }   I don't know if I'm doing it completely wrong, but I want the image to change to the corresponding one each time text in the corresponding column changes. How can I get this to work?    After some attempt,   \documentclass{beamer}  \begin{document}  \frame{\frametitle{testing cols} \begin{columns}[t] \column{5cm}  \begin{itemize} \item On the next column you see a pic\pause \item Pic is getting bigger! \pause \item And it got even more big!  \end{itemize}  \column[T]{10cm} \includegraphics[width=20mm]{pic.png}\pause \llap{\includegraphics[width=30mm]{pic.png}}\pause \llap{\includegraphics[width=40mm]{pic.png}} \end{columns} } end{document}   The image gets overlayed after the text cycle is complete. Can I make them simultaneous?
61145
I am trying to customize the legend for this graph. First of all, I would like the legend width to be equal to the x-axis width. At the moment, I am setting the width of the legend via      /tikz/every even column/.append style={column sep=1.0cm}   and I could manually adjust this value so that length equals the x-axis width, but I guess that there is a more elegant way to set the width of the legend.  Second, I don't really like the little color rectangles in the legend. I only want one rectangle in front of every entry and not two. This rectangle does not need to have a border and should be vertically centred with the text. The alignment seems to be okay for the rectangle closer to the text, but not for one the far left.   Update: Thanks to Christian Feuersänger's comment, there is possibility to change the rectangles via   legend image code/.code={%     \draw[#1, draw=none] (0cm,-0.1cm) rectangle (0.6cm,0.1cm);   or what Gonzalo Medina proposed  legend image code/.code={%     \draw[#1, draw=none, /tikz/.cd, bar width=3pt, yshift=-0.2em, bar shift=0pt] %     plot coordinates {(2*\pgfplotbarwidth,0.6em)};   Third, I would like to the legend entries to start next to the text "Legend:".  I don't really know if with these requirements it still makes sense to use legend or if it would be better to add everything manually via after end axis/.code and \ref{label}.  Graph    MWE  \documentclass{article} \usepackage{pgfplots} \pgfplotsset{compat=newest}  \begin{document} \begin{tikzpicture}     \begin{axis}[                 ybar,                 height=6cm,                 title={Some plot},                 width=12cm,                 axis on top,                 y axis line style={opacity=0},                 axis x line*=bottom,                 tick align=inside,                 tick style={draw=none},                 xtick=data,                 ymajorgrids,                 major grid style={draw=white},                 xtick={1,2,3,4},                 legend style={                     at={(0.0,-0.15)},                     anchor=north west,                     legend columns=-1,                     /tikz/every even column/.append style={column sep=1.0cm}                         },             ]                    \addlegendimage{empty legend}             \addlegendentry{\textbf{Legend:}}                                \addplot coordinates {                 (1, 0.2064)                 (2, 0.3961)                 (3, 0.5961)                 (4, 0.7961)}; \addlegendentry[text width=45pt, text depth=]{legend a}             \addplot coordinates {                 (1, 0.3064)                 (2, 0.4961)                 (3, 0.6961)                 (4, 0.8961)}; \addlegendentry[text width=65pt, text depth=]{lengend b}     \end{axis}  \end{tikzpicture} \end{document}
61699
I am currently preparing my beamer presentation for my PhD defense.  I took the example at the url  to get a black board style presentation.  This template includes a short script which uses a random-generator to randomly scatter dust-trails on the black background to mimic chalk traces (see MWE below).  The thing is that parallel to that, I am also using overlays to uncover my slide layout by layout. The script is executed each time I am using a layout command which slows down the compilation quite substantially. I am not so familiar with control statements in latex, so here is my question:  How can-I modify this script for the background to be refreshed only when the slide is over, and not after each layout command?  Remarks:  1) I am using the Augie font, but I didn't included it in the MWE so that it can be compiled more easily  2) In case, it should make a difference I am also using the \begin{textblock*} \end{textblock*} environment from the textpos package to position text on the slide.  Here is my MWE:   \documentclass[10pt,mathserif]{beamer}  \usepackage[francais,english]{babel} \usepackage[utf8] {inputenc} %for ISOlatin1 (8859-1) sources \usepackage[T1] {fontenc}      %for polices DC 8bits   %%%Fancy fonts %\usepackage{emerald} %\usepackage{eulervm} %%%  %%Extra packages \usepackage{amsmath} \usepackage{amsfonts} \usepackage{tikz} \usetikzlibrary{arrows,shapes} \usepackage[absolute,overlay]{textpos}    %set text colors for different objects \setbeamercolor{frametitle}{fg=white} \setbeamercolor{structure}{fg=white} \setbeamercolor{normal text}{fg=white} \setbeamercolor{alerted text}{fg=white} \setbeamercolor{example text}{fg=white}   %%Black background \setbeamercolor{background canvas}{bg=black}    %%%%%%%%%%%%%%%%%%%%%% %%%%%Script: Random Dust Trails%%%%%%%%%%%%%%% \pgfmathsetseed{\number\pdfrandomseed} % seed for random generator \setbeamertemplate{background}{     \begin{tikzpicture}         \useasboundingbox (0,0) rectangle (\the\paperwidth, \the\paperheight);        \foreach \i in {1,...,30} {             \pgfmathsetmacro{\x}{random(0,10000)/5000-1}%             \pgfmathsetmacro{\y}{random(0,10000)/10000-0.1}%             \pgfmathsetmacro{\r}{random(0,10000)/1000-5}%             \rotatebox{\r}{                 \pgftext[at=\pgfpoint{\x\paperwidth}{\y\paperheight}, left, base]{\includegraphics[width=\textwidth]{paintstroke.png}}             }         };      \end{tikzpicture} } %%%%%%%%%%%%%%%%%%%%%%  %%No navigation bar \setbeamertemplate{navigation symbols}{}  \begin{document}      \begin{frame}          \begin{itemize}             \item&lt;1-&gt; bla slide 1             \item&lt;2-&gt; blu slide 1             \item&lt;3-&gt; blub slide 1         \end{itemize}      \end{frame}  %%I want the background to be refreshed with the Dust Trails script only at the end of the frame          \begin{frame}          \begin{itemize}             \item&lt;1-&gt; bla slide 2             \item&lt;2-&gt; blu slide 2             \item&lt;3-&gt; blub slide 2         \end{itemize}      \end{frame}  \end{document}   This is my first post, so please be kind if I did something illegal on the formatting of the message ;-).  Thanks in advance,  Yannick