更改 tcolorbox 预定义定理样式中的分隔符，同时保留其他属性

Question

我目前在我的数学笔记中使用 tcolorbox，并且我为定理定义了以下环境。

\newtcbtheorem{defn}{}{
enhanced, 
breakable,
colback = BrightGreen!50!white,
colframe = white, 
coltitle = ForestGreen,
sharp corners,
theorem style = break,
fonttitle = \bfseries\large,
separator sign = {.~}
}{defn}

\newtcbtheorem[use counter from=defn]{thm}{}{
enhanced, 
breakable,
colback = cyan!30!white, 
colframe = white,
coltitle = RoyalBlue,
sharp corners,
theorem style = break,
fonttitle = \bfseries\large,
separator sign = {.~}
}{thm}

结果就是这样的。

我实际上想删除(:分隔符，它（可能？）被定义为预定义定理样式的一部分break。结果应该是这样的：

我该怎么做？谢谢！

Answer 1

标题周围的括号取决于您选择的样式。请不要使用theorem style = break并稍微修改您的\newtcbtheorem定义。

我添加了theorem number定理数的正确定位。需要更新版本tcolorbox才能使用此选项。我使用的是 5.0.2。

由于您没有提供完整的 MWE，我将其用作book文档类并发明了BrightGreen颜色。

\documentclass{book}
\usepackage[dvipsnames]{xcolor}
\definecolor{BrightGreen}{rgb}{0.4, 1.0, 0.0}

\usepackage[most]{tcolorbox}
\tcbuselibrary{theorems}

\tcbset{commonstyle/.style={
    enhanced, 
    breakable,
    sharp corners,
    toptitle=4pt,
    bottomtitle=0pt,
    titlerule=0pt,
    top=4pt,
    fonttitle = \bfseries\large,
    separator sign = {.},
    theorem number
    }}

\newtcbtheorem{defn}{}{
    commonstyle,
    colback = BrightGreen!50!white,
    colbacktitle = BrightGreen!50!white, 
    colframe = BrightGreen!50!white,
    coltitle = ForestGreen,
    }{defn}

\newtcbtheorem[use counter from=defn]{thm}{}{
    commonstyle,
    colback = cyan!30!white, 
    colbacktitle = cyan!30!white, 
    colframe = cyan!30!white,
    coltitle = RoyalBlue,
    }{thm}

\begin{document}
    \chapter{My Chapter}
    \section{My Section}
    \begin{defn}{The title of my definition}{}
        The text of my definition.
    \end{defn}
    \begin{thm}{The title of my theorem}{}
        The text of my theorem.
    \end{thm}
\end{document}