fix section and item bullets size

I would like to fix the size of item as big as section. Many thanks in advance.

    documentclass{beamer}
usetheme{Warsaw}

begin{document}
    
AtBeginSubsection[]{%
    frame<beamer>{ 
        frametitle{Outline}   
        tableofcontents[currentsection,currentsubsection] 
    }
}
%beamerdefaultoverlayspecification{<+->}
begin{frame}{Outline}
    tableofcontents{}  
end{frame}

section{Chapter 1}
subsection{textcolor{black}{General Introduction.}}
%frame{tableofcontents[currentsection]}

begin{frame}{Overview & Contributions}
    begin{enumerate} %begin{enumerate}
        item textcolor{red}{Chapter 2}
        begin{itemize}
            item Chapter 2 contributes
        end{itemize}
    end{enumerate} %end{enumerate}
end{frame}

end{document}