%%
%% The LaTeX Companion, 3ed
%%
%% Example 8-2-16 on page I-596 in "Overview about the most important keys".
%%
%% 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{39.0pt}

%StartShownPreambleCommands
\usepackage{xcolor,adjustbox}
%StopShownPreambleCommands

\begin{document}
\adjustbox{rndcorners=3 9,Clip=0 1 0 0}{\colorbox{gray!30}{\Large\LaTeX}} \par
\adjustbox{Clip=0 1 0 0,rndcorners=3 9}{\colorbox{gray!30}{\Large\LaTeX}}
\end{document}
