如何更改马德里中的项目颜色和投影仪中的海狸主题？

Question

\documentclass[xcolor=dvipsnames]{beamer} % dvipsnames gives more built-in colors
%\geometry{hmargin={1.14in,1.14in}, vmargin={1.02in,.99in}}

\usepackage{graphicx}% for "\scalebox" macro

\usepackage[utf8]{inputenc}

\usepackage[T1]{fontenc}
\usepackage{scalerel}[2016-12-29]
\usepackage{bigints}
%\usepackage{mtpro2}
\usepackage{relsize}
%\usepackage{amsmath}

\usetheme{Madrid}
\useoutertheme{infolines} % Alternatively: miniframes, infolines, split
%\useinnertheme{circles}
\usecolortheme{beaver} %gray and red color theme


\usefonttheme{serif} %times new roman 


%\usecolortheme[named=UBCblue]{structure}
\usecolortheme[named=Mahogany]{structure} % Sample dvipsnames color

\title[Short title]{Big Title }
\date{\today}
\author[Author]{author list}
\institute[]{Department\\University }

\begin{document}


{
\setbeamertemplate{footline}{} 
\begin{frame}
  \titlepage
\end{frame}
}
\addtocounter{framenumber}{-1}



\begin{frame}
\frametitle{Objectives} 
    objectives  
    \begin{enumerate}
    \item Objective no 1
    \begin{itemize}
    \item Obs-2
        \item  Obs-3
    \end{itemize}

    \end{enumerate}
\end{frame}

\end{document}

我如何更改项目符号颜色？我只想要枚举数字。为什么项目符号颜色\item这么暗。任何帮助都非常感谢

Answer 1

您可以通过以下方式控制主题组合使用的 itemize/enumerate 球的颜色\setbeamercolor{item projected}{bg=yellow,fg=black}

其他的建议：

• 无需破解帧计数器，你可以使用选项排除标题帧的noframenumbering计数

• 无需加载graphicx包，beamer 会自动执行此操作

\documentclass[xcolor=dvipsnames]{beamer} % dvipsnames gives more built-in colors
%\geometry{hmargin={1.14in,1.14in}, vmargin={1.02in,.99in}}

%\usepackage{graphicx}% for "\scalebox" macro

\usepackage[utf8]{inputenc}

\usepackage[T1]{fontenc}
\usepackage{scalerel}[2016-12-29]
\usepackage{bigints}
%\usepackage{mtpro2}
\usepackage{relsize}
%\usepackage{amsmath}

\usetheme{Madrid}
\useoutertheme{infolines} % Alternatively: miniframes, infolines, split
%\useinnertheme{circles}
\usecolortheme{beaver} %gray and red color theme


\usefonttheme{serif} %times new roman 


%\usecolortheme[named=UBCblue]{structure}
\usecolortheme[named=Mahogany]{structure} % Sample dvipsnames color

\setbeamercolor{item projected}{bg=yellow,fg=black}

\title[Short title]{Big Title }
\date{\today}
\author[Author]{author list}
\institute[]{Department\\University }

\begin{document}


{
\setbeamertemplate{footline}{} 
\begin{frame}[noframenumbering]
  \titlepage
\end{frame}
}




\begin{frame}
\frametitle{Objectives} 
    objectives  
    \begin{enumerate}
    \item Objective no 1
    \begin{itemize}
    \item Obs-2
        \item  Obs-3
    \end{itemize}

    \end{enumerate}
\end{frame}

\end{document}