beamer add tag
topnush
I recently upgraded my version of texlive to

```
pdflatex --version
pdfTeX 3.141592653-2.6-1.40.22 (TeX Live 2022/dev/Debian)
kpathsea version 6.3.4/dev
```

Now when I try to render this skeleton beamer document:

```
\documentclass[xcolor={rgb}]{beamer}

\beamertemplatenavigationsymbolsempty
\setbeamersize{text margin left=10mm,text margin right=5mm} 
\setbeamertemplate{frametitle}[default][center]

\usepackage{listings}

\usepackage{tikz}
\usetikzlibrary{arrows.meta,
	shapes,
	tikzmark}
\usetikzlibrary{tikzmark,shapes.geometric, patterns,decorations.pathreplacing, calligraphy}

\usetikzmarklibrary{listings} 


\definecolor{titlecolor}{RGB}{29, 110, 174}

\newcommand{\tikzcircle}[3][red]{\tikz[baseline=-0.5ex]{\node[draw={#1}, fill={#1}, circle,text width=#2,minimum width=1.4em,text=black,align=center] at (0,0) {#3};}\hspace{0pt}}%

\def\numcolors{10}
\def\numdots{18}

\pgfmathparse{1/\numcolors}%
\definecolorseries{foo}{hsb}{step}{red!90!black}{\pgfmathresult,0,0} 
\resetcolorseries[\numcolors]{foo}% 


\begin{document}


\begin{frame}[t, fragile]{\textsc{Morris} - Quality of estimate}

\pgfmathrandominteger{\myran}{1}{10}%
  \tikzcircle[{foo!![\myran]}]{8pt}%
  

\end{frame}


\end{document}
```

I get

```
! Package pgf Error: Unsupported color model `hsb'. Sorry.
```

How can this be fixed?
Top Answer
samcarter
@Ulrike Fischer (as usual :)) nailed the problem. This was a temporary bug in beamer v3.65. You should update to beamer v3.66 or newer.

As a temporary workaround until you update, you could use 


```
\PassOptionsToPackage{rgb}{xcolor}
\documentclass{beamer}
```

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