如何让页面中的书名变成彩色？

Question

我用 tikzpicture 给一页纸上色，我想让书名放在彩色页面的中央。但是当我写代码时

\documentclass{book}
\usepackage[dvipsnames]{xcolor}
\usepackage{tikz}
\title{\Huge C++ \\\qquad\textcolor{RedOrange}{Primer}}

\newlength\amount
\setlength{\amount}{0.33\paperheight}
\begin{document}
\maketitle
\begin{tikzpicture}[remember picture,overlay]
  \fill[green] (current page.north west) rectangle ([yshift=-\amount]current page.north east);
  \fill[yellow] ([yshift=-\amount]current page.north west) rectangle ([yshift=-2\amount]current page.north east);
  \fill[red]([yshift=-2\amount]current page.north west) rectangle ([yshift=-3\amount]current page.north east);
\end{tikzpicture}
\end{document}

书名开始新的一页。

Answer 1

\maketitle自动插入\newpage。为了防止这种情况，我们可以按照所示执行相同的操作https://tex.stackexchange.com/a/86255/143325，即本地覆盖的定义，\newpage以致于它不执行任何操作。

请注意，tikzpicture必须前或者它将\maketitle覆盖文本。

\documentclass{book}
\usepackage[dvipsnames]{xcolor}
\usepackage{tikz}
\title{\Huge C++ \\\qquad\textcolor{RedOrange}{Primer}}

\newlength\amount
\setlength{\amount}{0.33\paperheight}
\begin{document}
\begin{tikzpicture}[remember picture,overlay]
  \fill[green] (current page.north west) rectangle ([yshift=-\amount]current page.north east);
  \fill[yellow] ([yshift=-\amount]current page.north west) rectangle ([yshift=-2\amount]current page.north east);
  \fill[red]([yshift=-2\amount]current page.north west) rectangle ([yshift=-3\amount]current page.north east);
\end{tikzpicture}
{\let\newpage\relax\maketitle} %<--------
\end{document}