Im getting a warning, as in tittle. Because of that (I think so) I cant see specified bacground colors and so on. Below I paste the source code. The error tells that it do not recognize the "true - how can I fix that?
\documentclass[final,3p,times]{elsarticle}
\pgfplotsset{compat=1.18}
\begin{document}
\textbf{Appendix: moving mesh}
\lstinputlisting[language=python, captionpos=t, label={ListingRecHEL1}]{data/code.py}
\definecolor{codegreen}{rgb}{0,0.6,0}
\definecolor{codegray}{rgb}{0.5,0.5,0.5}
\definecolor{codepurple}{rgb}{0.58,0,0.82}
\definecolor{backcolour}{rgb}{0.6,0.9,0.1}
\renewcommand{\lstlistingname}{Kod}% Listing -> Algorithm
\lstdefinestyle{mystyle}{
backgroundcolor=\color{backcolour},
commentstyle=\color{codegreen},
keywordstyle=\color{codepurple},
numberstyle=\tiny\color{codegray},
stringstyle=\color{orange},
basicstyle=\ttfamily\tiny,
breakatwhitespace=false,
breaklines=true,
captionpos=b,
keepspaces=true,
numbers=true,
numbers=left,
numbersep=5pt,
showspaces=false,
showstringspaces=false,
showtabs=false,
tabsize=2
name = "Kod"
}
\lstset{style=mystyle}
\clearpage
\end{document}