所以我一直在尝试使用 thmbox 来增加我的本科报告的趣味性，但我不喜欢默认样式，所以我正在尝试调整它。我基本上已经按照我想要的方式做了，除了标题中的任何数学仍然显示为粗体，尽管我已经使用 更改了标题样式\mdseries。
这是我在序言中所做的：
\documentclass[a4paper,12pt,titlepage]{article}
\bibliographystyle{plain}
\usepackage[margin=1.5cm]{geometry}
\usepackage{amsmath}
\usepackage{amsfonts}
\usepackage{graphicx}
\usepackage{hyperref}
\usepackage{amsthm}
\usepackage{thmbox}
\newtheorem[L]{theorem}{Theorem}[section]
\newtheorem[L]{definition}{Definition}[section]
\newtheorem[L]{corollary}{Corollary}[theorem]
\newtheorem[L]{lemma}[theorem]{Lemma}
\newtheorem[L]{proposition}[theorem]{Proposition}
\newtheorem[S]{remark}[theorem]{Remark}
\thmboxoptions{
leftmargin = 4.5pt,
thickness = 0.3pt,
bodystyle = \itshape\noindent,
titlestyle = \hspace{0.15cm}-\hspace{0.15cm}(\mdseries{#1})
}
像这样使用它：
\begin{definition}[The Free Group on Two Generators, $F_2$]
The free group on two generators, $F_2$ is a free group over a set with two elements (generators), $S = \{a,b\}$, containing all reduced words that can be formed by concatenating elements of $\{ a, a^{-1}, b, b^{-1}\}$. The identity is the empty word, denoted $e$.
\end{definition}
给出：
我不希望 $F_2$ 变得粗体！
此外，如果有人能帮助我让盒子完全包裹住内容，那就更好了！这是我的理想，但如果不是这样，我也会很高兴！（另外，我对 LaTeX 不是很有经验，所以如果可能的话，请尝试给我简单的解决方案！）
答案1
您只需使用即可headstyle。使用\textbf可避免粗体字样传播。您需要它，因为默认情况下，包中有\bfseries\boldmath。
我会在正文中使用短破折号而不是连字符和直立括号。实际上，定义通常以直立字体排版，以强调定义的概念。
如果您希望左侧栏与左边距齐平，正确的间距是 4.3pt，并且右侧也需要相同的间距。为什么？因为thmbox：您总是否则将超额 4.3pt。
\documentclass{article}
\usepackage{thmbox}
\newtheorem[L]{definition}{Definition}[section]
\thmboxoptions{
leftmargin = 4.3pt,
rightmargin= 4.3pt,% <--- or you get an overfull of 4.3pt
thickness = 0.3pt,
bodystyle = \itshape\noindent,
titlestyle = \ --\ (#1),
headstyle = \textbf{#1 #2},
}
\newcommand{\itp}[1]{\textup{(}#1\textup{)}}
\begin{document}
\begin{definition}[The Free Group on Two Generators, $F_2$]
The free group on two generators, $F_2$ is a free group over a set with two
elements \itp{generators}, $S = \{a,b\}$, containing all reduced words that
can be formed by concatenating elements of $\{a, a^{-1}, b, b^{-1}\}$. The
identity is the empty word, denoted $e$.
\end{definition}
\end{document}
实际上，定义通常采用直排版，强调所定义的概念。但这是一种风格决定。
\documentclass{article}
\usepackage{thmbox}
\newtheorem[L]{definition}{Definition}[section]
\thmboxoptions{
leftmargin = 4.3pt,
rightmargin= 4.3pt,% <--- or you get an overfull of 4.3pt
thickness = 0.3pt,
bodystyle = \upshape\noindent,
titlestyle = \ --\ (#1),
headstyle = \textbf{#1 #2},
}
\newcommand{\itp}[1]{\textup{(}#1\textup{)}}
\begin{document}
\begin{definition}[The Free Group on Two Generators, $F_2$]
The \emph{free group on two generators}, $F_2$ is a free group over a set with two
elements (generators), $S = \{a,b\}$, containing all reduced words that
can be formed by concatenating elements of $\{a, a^{-1}, b, b^{-1}\}$. The
identity is the empty word, denoted $e$.
\end{definition}
\end{document}
答案2
正如评论中所暗示的那样，只需删除键\boldmath中的开关即可headstyle。请注意，这\mdseries是一个开关，而不是一个带参数的命令，因此您对\mdseries{#1}in的使用titlestyle可以只是\mdseries #1。正如 egreg 在评论中提到的那样，您还应该将其放在\mdseries前面(，这样第一个括号就不会加粗。
\documentclass{article}
\usepackage{thmbox}
\newtheorem[L]{definition}{Definition}[section]
\thmboxoptions{
leftmargin = 4.5pt,
thickness = 0.3pt,
bodystyle = \itshape\noindent,
titlestyle = \hspace{0.15cm}-\hspace{0.15cm}\mdseries(#1),
headstyle = \bfseries#1 #2,
}
\begin{document}
\begin{definition}[The Free Group on Two Generators, $F_2$]
The free group on two generators, $F_2$ is a free group over a set with two elements (generators), $S = \{a,b\}$, containing all reduced words that can be formed by concatenating elements of $\{ a, a^{-1}, b, b^{-1}\}$. The identity is the empty word, denoted $e$.
\end{definition}
\end{document}
