# color fill an item of an enumerated list

I've recently seen How to "bubble in"/color fill an item counter ((A),(B),(C),...) in an enumerated list and I just wondered: what if I'd like to enumerate my list with the arabic numbers, i.e. 1,2,3 etc? What would be the code?

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\begin{enumerate} \item whatever \end{enumerate} ? (With enumitem if something more fancy is needed.) –  mbork Feb 27 '13 at 20:03
ok but I think that this kind of code was used there. –  giannis Feb 27 '13 at 20:15

Just replace all occurences of \Alph by \arabic in How to "bubble in"/color fill an item counter ((A),(B),(C),...) in an enumerated list:

\documentclass{article}
\usepackage{tikz}

\newcommand*\circled[1]{\tikz[baseline=(char.base)]{%
\node[circle,fill=blue!20,draw,inner sep=2pt,opacity=0.5,text opacity=1] (char) {#1};}}

\def\cnt{\stepcounter{enumi}\arabic{enumi}}

\usepackage{enumitem}

\begin{document}
\renewcommand{\labelenumi}{(\arabic{enumi})}
\begin{enumerate}