标题页可以怎样着色？

Question

假设我有一个像这样的标题页

\documentclass[12pt]{book}
\usepackage{lmodern}

\usepackage[left=2.50cm, right=2.54cm, top=2.54cm, bottom=2.54cm]{geometry}

\usepackage{graphicx}


\begin{document}

\begin{titlepage} 

        \parbox[t]{0.93\textwidth}{ 
            \parbox[t]{0.91\textwidth}{ 
                \raggedleft 
                \fontsize{50pt}{80pt}\selectfont 
                
                The duck who wanted to be a prince
                
            }
        }
        
    
    \begin{figure}[!htb]
        \centering
        \includegraphics[width = 50mm]{example-image-duck}
    \end{figure}
    
\end{titlepage}

\newpage ~
\end{document}

如何才能使第二页及后续页面保持白色，而其背景颜色为白色呢？

Answer 1

您可以在标题页之后切换回白色：

\documentclass[12pt]{book}
\usepackage{lmodern}

\usepackage[left=2.50cm, right=2.54cm, top=2.54cm, bottom=2.54cm]{geometry}

\usepackage{graphicx}

\usepackage{xcolor}

\begin{document}

\begin{titlepage}
\pagecolor{red} 
        \parbox[t]{0.93\textwidth}{ 
            \parbox[t]{0.91\textwidth}{ 
                \raggedleft 
                \fontsize{50pt}{80pt}\selectfont 
                
                The duck who wanted to be a prince
                
            }
        }
        
    
    \begin{figure}[!htb]
        \centering
        \includegraphics[width = 50mm]{example-image-duck}
    \end{figure}
    \AddToHookNext{shipout/after}{\pagecolor{white}}
\end{titlepage}

\newpage  ~
\end{document}

或者你可以使用 tikz 在标题页后面放置一个大的彩色矩形：

\documentclass[12pt]{book}
\usepackage{lmodern}

\usepackage[left=2.50cm, right=2.54cm, top=2.54cm, bottom=2.54cm]{geometry}

\usepackage{graphicx}

\usepackage{tikz}

\begin{document}

\begin{titlepage}
\begin{tikzpicture}[overlay, remember picture]
\fill[red] (current page.south west) rectangle (current page.north east);
\end{tikzpicture}
        \parbox[t]{0.93\textwidth}{ 
            \parbox[t]{0.91\textwidth}{ 
                \raggedleft 
                \fontsize{50pt}{80pt}\selectfont 
                
                The duck who wanted to be a prince
                
            }
        }
        
    
    \begin{figure}[!htb]
        \centering
        \includegraphics[width = 50mm]{example-image-duck}
    \end{figure}

\end{titlepage}

\newpage  ~
\end{document}

Answer 2

我的回答类似的问题也适用于你的情况：

\documentclass[12pt]{book}
\usepackage{lmodern}

\usepackage[left=2.50cm, right=2.54cm, top=2.54cm, bottom=2.54cm]{geometry}

\usepackage{xcolor}
\usepackage{graphicx}

\AddToHook{env/titlepage/begin}{\pagecolor{green}}
\AddToHook{env/titlepage/after}{\nopagecolor}


\begin{document}

\begin{titlepage} 

        \parbox[t]{0.93\textwidth}{ 
            \parbox[t]{0.91\textwidth}{ 
                \raggedleft 
                \fontsize{50pt}{80pt}\selectfont 
                
                The duck who wanted to be a prince
                
            }
        }
        
    
    \begin{figure}[!htb]% figure environment does not really make sense here
        \centering
        \includegraphics[width = 50mm]{example-image-duck}
    \end{figure}
    
\end{titlepage}

\newpage ~
\end{document}

或者使用旧的 LaTeX：

\documentclass[12pt]{book}
\usepackage{lmodern}

\usepackage[left=2.50cm, right=2.54cm, top=2.54cm, bottom=2.54cm]{geometry}

\usepackage{xcolor}
\usepackage{graphicx}


\begin{document}

\begin{titlepage} 
\pagecolor{green}
        \parbox[t]{0.93\textwidth}{ 
            \parbox[t]{0.91\textwidth}{ 
                \raggedleft 
                \fontsize{50pt}{80pt}\selectfont 
                
                The duck who wanted to be a prince
                
            }
        }
        
    
    \begin{figure}[!htb]
        \centering
        \includegraphics[width = 50mm]{example-image-duck}
    \end{figure}
    
\end{titlepage}
\nopagecolor
\newpage ~
\end{document}

两者的结果是：

顺便说一句：figure标题页上没有标题的环境实际上毫无意义。您应该删除\begin{figure}[!htb]和\end{figure}或figure用center环境替换环境（并删除\centering）。