%%
%% The LaTeX Companion, 3ed
%%
%% Example 4-1-25 on page I-274 in "Controlling the list numbering".
%%
%% Copyright (C) 2022 Frank Mittelbach
%%
%% It may be distributed and/or modified under the conditions
%% of the LaTeX Project Public License, either version 1.3c
%% of this license or (at your option) any later version.
%%
%% See https://www.latex-project.org/lppl.txt for details.
%%

\documentclass{tlc3exa}
\pagestyle{empty}
\setcounter{page}{6}
\setlength\textwidth{141.0pt}


  \usepackage{microtype}  % improve the line breaking in short measure


%StartShownPreambleCommands
\usepackage{pifont,color,enumitem}
\setlist[itemize]{label=\ding{43}}
\setlist[enumerate,1]{start=172,ref=\ding{\arabic*},
                 label=\textcolor{blue}{\ding{\arabic*}}}
%StopShownPreambleCommands

\begin{document}
\begin{enumerate}
\item Altering \texttt{enumerate} is easy:\label{x1}
  \begin{itemize} \item Just load a font with nice digits.
             \item Select the starting point if necessary.
  \end{itemize}
\item For \texttt{itemize} select the symbol in
     the \texttt{label}.\label{x2}
\item Cross-referencing still works.\label{x3}
\end{enumerate} x1=\ref{x1} x2=\ref{x2} x3=\ref{x3}
\end{document}