easybook (27apr21)

git-svn-id: svn://tug.org/texlive/trunk@59008 c570f23f-e606-0410-a88d-b1316a301751

6 files changed, 157 insertions, 147 deletions

diff --git a/Master/texmf-dist/doc/latex/easybook/chapter1.tex b/Master/texmf-dist/doc/latex/easybook/chapter1.tex
index 58d20eb0e81..62d88981755 100644
--- a/Master/texmf-dist/doc/latex/easybook/chapter1.tex
+++ b/Master/texmf-dist/doc/latex/easybook/chapter1.tex
@@ -61,7 +61,7 @@
   \zhlipsum*[59][name = aspirin]
 \end{ebparbox}
 
-\begin{exercise}+[LightBlue][1.](习题)[after skip = 3.25ex][\zhlipsum*[20][name = zhufu]]
+\begin{exercise}+[LightSkyBlue][1.](习题)[after skip = 3.25ex][\zhlipsum*[20][name = zhufu]]
 \index{x@习题环境}
   \item \zhlipsum*[20][name = zhufu]
     \begin{tasks}
diff --git a/Master/texmf-dist/doc/latex/easybook/easybook-demo.pdf b/Master/texmf-dist/doc/latex/easybook/easybook-demo.pdf
index bcfab496973..79e9ef2ef1f 100644
--- a/Master/texmf-dist/doc/latex/easybook/easybook-demo.pdf
+++ b/Master/texmf-dist/doc/latex/easybook/easybook-demo.pdf
diff --git a/Master/texmf-dist/doc/latex/easybook/easybook-demo.tex b/Master/texmf-dist/doc/latex/easybook/easybook-demo.tex
index 3d9bd6212f9..d92084a44e2 100644
--- a/Master/texmf-dist/doc/latex/easybook/easybook-demo.tex
+++ b/Master/texmf-dist/doc/latex/easybook/easybook-demo.tex
@@ -106,7 +106,7 @@
     \url{https://latexstudio.net} \\
     \url{https://gitee.com/texl3/easybook}\thanks{Gitee为项目的主要发布地址。}
   }
-\date{2021/04/25\hskip\ccwd\relax v1.24t}
+\date{2021/04/27\hskip\ccwd\relax v1.24u}
 
 \frontmatter[roman]
 \maketitle
diff --git a/Master/texmf-dist/doc/latex/easybook/easybook.pdf b/Master/texmf-dist/doc/latex/easybook/easybook.pdf
index bd22407ff24..b2dd8f3d31a 100644
--- a/Master/texmf-dist/doc/latex/easybook/easybook.pdf
+++ b/Master/texmf-dist/doc/latex/easybook/easybook.pdf
diff --git a/Master/texmf-dist/source/latex/easybook/easybook.dtx b/Master/texmf-dist/source/latex/easybook/easybook.dtx
index dd209df1373..c4966338421 100644
--- a/Master/texmf-dist/source/latex/easybook/easybook.dtx
+++ b/Master/texmf-dist/source/latex/easybook/easybook.dtx
@@ -56,7 +56,7 @@ The latest version of this license is in
 %
 % \title{\sffamily easybook 书籍文档类}
 % \author{瞿毅}
-% \date{2021/04/25\hskip\ccwd\relax v1.24t\thanks{\url{https://gitee.com/texl3/easybook}}}
+% \date{2021/04/27\hskip\ccwd\relax v1.24u\thanks{\url{https://gitee.com/texl3/easybook}}}
 % \maketitle
 % \begin{abstract}
 %   \cls{easybook} 是基于 \cls{ctexbook} 书籍文档类创建以极简为风格的模板，可以看作对 \cls{ctexbook} 的进一步包装。虽然\CTeX 文档类提供了较好的中文支持，但想实现个性化功能一般需要在其基础上载入更多宏包来定制。\cls{easybook} 考虑了一些细节并载入一些常用宏包实现一般的排版需求，它适用于排版中英文书籍或笔记，甚至可稍加调整成为学位论文模板。
@@ -183,7 +183,7 @@ The latest version of this license is in
 % \end{syntax}
 % \opt{multoc} 与 \opt{style/multoc} 选项具有相同的效果，但是具有优先性且可单独设置不同目录是否双栏排版。已经预置了中英文的目录标题，可以使用 \opt{title} 选项更改目录标题的名称。\opt{book} 选项使目录标题按照 \opt{chapter} 级别输出，\opt{article} 选项使目录标题按照 \opt{article} 级别输出，默认为 \opt{chapter} 级别。
 % \changes{v1.23}{2021/03/15}{为几个目录增加键值列表的选项，可设置标题输出级别以及是否加入主目录。}
-% \changes{v1.24t}{2021/04/04}{目录命令的可选参数增加标题键值。}
+% \changes{v1.24u}{2021/04/04}{目录命令的可选参数增加标题键值。}
 % \end{function}
 %
 % \section{接口选项}
@@ -266,7 +266,7 @@ The latest version of this license is in
 % \ding{229} 以上选项路径为 \opt{link/...} \\
 % \opt{link} 将超链接选项（包括以上选项）交给 \pkg{hyperref} 处理，除了一些关于 pdf 书签的选项可能会失效，其它由键值选项命令 \tn{hypersetup} 支持的多数选项可用。
 % \changes{v1.10}{2021/01/08}{修复了 \opt{linktopage} 选项关闭时目录中标题编号无超链接的问题。}
-% \changes{v1.24t}{2021/04/05}{增加 \pkg{hyperref} 超链接选项完整的支持。}
+% \changes{v1.24u}{2021/04/05}{增加 \pkg{hyperref} 超链接选项完整的支持。}
 % \end{function}
 %
 % \begin{optdesc}
@@ -345,7 +345,7 @@ The latest version of this license is in
 % \ding{229} 以上选项路径为 \opt{bibset/...}
 % \changes{v1.21}{2021/01/11}{增加 \opt{bibset} 选项，可以使用 \hologo{BibTeX} 或 \hologo{biber} 编译参考文献。}
 % \changes{v1.23}{2021/02/23}{使用 \opt{bibset} 选项时可设置标注风格。}
-% \changes{v1.24t}{2021/04/09}{可以不载入参考文献包手动配置参考文献格式。}
+% \changes{v1.24u}{2021/04/09}{可以不载入参考文献包手动配置参考文献格式。}
 % \end{function}
 %
 % \begin{optdesc}
@@ -417,7 +417,7 @@ The latest version of this license is in
 % \end{syntax}
 % 文档类已预置8个定理环境，环境名及对应的定理标题名见小节 \ref{subsec:theorem}，如果需要新的定理标题名或定理样式可使用这两个命令。
 % \changes{v1.23}{2021/03/12}{重新定义了新定理环境命令 \tn{newtheorem}。}
-% \changes{v1.24t}{2021/04/25}{增加定义定理环境命令 \tn{EbNewtheorem}。}
+% \changes{v1.24u}{2021/04/25}{增加定义定理环境命令 \tn{EbNewtheorem}。}
 % \end{function}
 %
 % \begin{optdesc}
@@ -501,7 +501,7 @@ The latest version of this license is in
 % \changes{v1.21}{2021/01/13}{增加配置页眉页脚的选项。}
 % \changes{v1.23}{2021/03/08}{优化页眉页脚设置，增加 \opt{chap-mark} 和 \opt{sec-mark} 标志选项。}
 % \changes{v1.23}{2021/03/14}{可以手动绘制页眉、页脚和脚注的横线。}
-% \changes{v1.24t}{2021/04/09}{增加 \opt{subsec-mark} 标志选项，仅在 \opt{article} 模式生效。}
+% \changes{v1.24u}{2021/04/09}{增加 \opt{subsec-mark} 标志选项，仅在 \opt{article} 模式生效。}
 % \end{function}
 %
 % \begin{function}[added = 2021-01-13,updated = 2021-03-14]{\easyhead,\easyfoot}
@@ -540,7 +540,7 @@ The latest version of this license is in
 %
 % \opt{format} 是目录中标题的格式，可以设置字体和加入垂直间距等，垂直间距最好使用无间距重合的 \tn{addvspace} 命令。\opt{indent} 是目录中标题在页面左侧的缩进距离，应该有长度单位。\opt{rule} 选项中一般应当使用 \tn{tocrule} 命令，将会在接下来介绍。\opt{numsep} 是有编号的标题在目录中编号与标题的间距。
 % \changes{v1.21}{2021/01/13}{增加配置目录样式的选项。}
-% \changes{v1.24t}{2021/04/20}{增加目录中编号与标题的间距选项 \opt{numsep}。}
+% \changes{v1.24u}{2021/04/20}{增加目录中编号与标题的间距选项 \opt{numsep}。}
 % \end{function}
 %
 % \begin{function}[added = 2021-01-13,updated = 2021-04-20]{\tocrule,\EbNumberline}
@@ -579,9 +579,9 @@ The latest version of this license is in
 %   indent-all = <目录标题左边缩进>
 % \end{syntax}
 % \ding{229} 以上选项路径为 \opt{tocset/lists/...} 或 \opt{tocset/...}
-% \changes{v1.24t}{2021/04/05}{可以设置图、表和代码目录的标签。}
-% \changes{v1.24t}{2021/04/06}{增加目录引导线右边对齐方式。}
-% \changes{v1.24t}{2021/04/19}{给目录增加 \opt{hang} 样式选项。}
+% \changes{v1.24u}{2021/04/05}{可以设置图、表和代码目录的标签。}
+% \changes{v1.24u}{2021/04/06}{增加目录引导线右边对齐方式。}
+% \changes{v1.24u}{2021/04/19}{给目录增加 \opt{hang} 样式选项。}
 % \end{function}
 %
 % \begin{optdesc}
@@ -621,7 +621,7 @@ The latest version of this license is in
 %   \tn{end}\marg{环境名}
 % \end{syntax}
 % \pkg{enumitem} 宏包为系统预置的列表环境 \env{enumerate}、\env{itemize}和 \env{description} 提供了更灵活的标签以及间距的控制，可使用 \tn{setlist} 命令设置原有的三种列表格式，也可以直接使用可选参数的键值列表，具体选项见 \pkg{enumitem} 宏包文档。已为三种列表预置了三个级别的格式可相互嵌套，默认标签与 \cls{book} 文档类相同，若自定义标签可例如
-% \changes{v1.24t}{2021/04/08}{重新优化列表环境的配置。}
+% \changes{v1.24u}{2021/04/08}{重新优化列表环境的配置。}
 % \end{function}
 %
 % \begin{ctexexam}
@@ -740,7 +740,7 @@ The latest version of this license is in
 %   \tn{end}\marg{ebparbox}
 % \end{syntax}
 % 环境 \env{ebparbox} 与 \env{easybox} 类似，同样带有三个可选参数。当使用星号参数时盒子左边带有一条竖线，\meta{颜色名} 选项可以自定义竖线颜色，使用不带有星号的环境则盒子带有竖线颜色的浅色背景。\meta{段落标题} 选项可以设置标题，默认无标题。
-% \changes{v1.24t}{2021/04/19}{优化盒子环境的选项，增加可带有标题的扁平盒子 \env{ebparbox}。}
+% \changes{v1.24u}{2021/04/19}{优化盒子环境的选项，增加可带有标题的扁平盒子 \env{ebparbox}。}
 % \end{function}
 %
 % \subsubsection{行内盒子}
@@ -799,7 +799,7 @@ The latest version of this license is in
 %   \tn{labelformat}\marg{计数器}\marg{标签引用格式}
 % \end{syntax}
 % 使用 \tn{ref} 命令进行引用将会自动检测环境并添加相应的前缀，\tn{labelformat} 可以设置标签引用格式，第二个参数中\#1代表 \tn{the}\meta{计数器}，可以设置引用序号的前缀和后缀。
-% \changes{v1.24t}{2021/04/11}{取消载入 \pkg{cleveref} 宏包来交叉引用。}
+% \changes{v1.24u}{2021/04/11}{取消载入 \pkg{cleveref} 宏包来交叉引用。}
 % \end{function}
 %
 % \subsubsection{索引}
@@ -909,7 +909,7 @@ The latest version of this license is in
 %<*class>
 \NeedsTeXFormat{LaTeX2e}[2020/10/01]
 \RequirePackage{l3keys2e,etoolbox}
-\ProvidesExplClass{easybook}{2021/04/25}{1.24t}{beta}
+\ProvidesExplClass{easybook}{2021/04/27}{1.24u}{beta}
 
 \cs_generate_variant:Nn \__ctex_define:nn {nx}
 \cs_generate_variant:Nn \int_to_arabic:n {v}
@@ -1403,6 +1403,7 @@ The latest version of this license is in
         \hspace{\use:c {eb@toc@#1@numsep}}
       }{}
   }
+\newtoggle{eb@titletoc@hang@fix}
 \__ctex_define:nn {tocset}
   {
     lists/lolskip     .skip_set:N = \l__eb_toc_lolskip_skip,
@@ -1417,29 +1418,22 @@ The latest version of this license is in
     tocline-fig       .initial:n =
       {
         \figurename\space#1
-        \ifodd\eb@titletoc@hang@fix
-        \else
-          \hspace{\eb@toc@lists@numsep}
-        \fi
+        \iftoggle{eb@titletoc@hang@fix}{}
+          {\hspace{\eb@toc@lists@numsep}}
       },
     tocline-tab       .cs_set:Np = \eb@labelname@lot#1,
     tocline-tab       .initial:n =
       {
         \tablename\space#1
-        \ifodd\eb@titletoc@hang@fix
-        \else
-          \hspace{\eb@toc@lists@numsep}
-        \fi
+        \iftoggle{eb@titletoc@hang@fix}{}
+          {\hspace{\eb@toc@lists@numsep}}
       },
     tocline-lst       .tl_set:N = \eb@labelname@lol,
     tocline-lst       .initial:n =
       {
-        \lstlistingname\space
-        \thelstlisting
-        \ifodd\eb@titletoc@hang@fix
-        \else
-          \hspace{\eb@toc@lists@numsep}
-        \fi
+        \lstlistingname\space\thelstlisting
+        \iftoggle{eb@titletoc@hang@fix}{}
+          {\hspace{\eb@toc@lists@numsep}}
       },
     line-align        .bool_set:N = \l__eb_toc_line_align_bool,
     line-align        .default:n = true,
@@ -1448,7 +1442,7 @@ The latest version of this license is in
     hang              .choice:,
     hang/true         .code:n =
       {
-        \bool_set_true:N \eb@titletoc@hang@fix
+        \toggletrue{eb@titletoc@hang@fix}
         \ctex_set:n
           {
             chapter/tocline = \CTEXnumberline{##1}##2,
@@ -1458,7 +1452,6 @@ The latest version of this license is in
       },
     hang/false        .code:n =
       {
-        \bool_set_false:N \eb@titletoc@hang@fix
         \ctex_set:n
           {
             chapter/tocline = \EbNumberline{##1}##2,
@@ -1532,14 +1525,15 @@ The latest version of this license is in
       [\use:c {l__eb_toc_#2_indent_tl}]
       {\use:c {l__eb_toc_#2_format_tl}}
       {
-        \ifodd\eb@titletoc@hang@fix
-          \contentspush
-            {
-              \color{ctex@link}
-              \thecontentslabel
-              \hspace{\use:c {eb@toc@#2@numsep}}
-            }
-        \fi
+        \iftoggle{eb@titletoc@hang@fix}
+          {
+            \contentspush
+              {
+                \bool_if:NT \l__eb_toc_color_bool{\color{ctex@toc}}
+                \thecontentslabel
+                \hspace{\use:c {eb@toc@#2@numsep}}
+              }
+          }{}
       }{}
       {\use:c {l__eb_toc_#2_rule_tl}}
   }
@@ -1565,9 +1559,7 @@ The latest version of this license is in
   {
     \addcontentsline{#1}{#2}
       {
-        \ifodd\eb@titletoc@hang@fix
-          \protect\numberline
-        \fi
+        \iftoggle{eb@titletoc@hang@fix}{\protect\numberline}{}
         {\prop_item:Nn \l__eb_label_name_prop{#2}{#3}}{#4}
       }
   }
@@ -1578,9 +1570,7 @@ The latest version of this license is in
   }{
     \addcontentsline{lol}{lstlisting}
       {
-        \ifodd\eb@titletoc@hang@fix
-          \protect\numberline
-        \fi
+        \iftoggle{eb@titletoc@hang@fix}{\protect\numberline}{}
         {\eb@labelname@lol}\lst@@caption
       }
   }
@@ -2062,7 +2052,7 @@ The latest version of this license is in
       {
         label = (\Alph*),
         after-item-skip = 0ex plus .1ex,
-        column-sep = .5\ccwd,
+        column-sep = \ccwd,
         item-indent = 2\ccwd,
         label-width = 1.5\ccwd
       }
@@ -2174,7 +2164,7 @@ The latest version of this license is in
         \end{tcolorbox}
       }{}
     \NewDocumentEnvironment{exercise}
-      {st+O{LightBlue}O{1.}D(){\c__eb_name_exercise_tl}o+O{}+b}
+      {st+O{LightSkyBlue}O{1.}D(){\c__eb_name_exercise_tl}o+O{}+b}
       {
         \IfBooleanTF{#2}
           {
@@ -2498,29 +2488,43 @@ The latest version of this license is in
       },
   }
 
-\cs_new:Npn \__eb_allow_urlbreak:
-  {
-    \cs_new:Npn \__eb_add_urlbreak_points:
-      {\tl_map_function:NN \c__eb_urlbreak_points_tl\do}
-    \__eb_appto_cmd:Nn
-      \UrlBreaks{\UrlOrds\__eb_add_urlbreak_points:}
-  }
-\tl_const:Nn \c__eb_urlbreak_points_tl
-  {
-    ABCDEFGHIJKLMNOPQRSTUVWXYZ
-    abcdefghijklmnopqrstuvwxyz
-    0123456789
-  }
-
-\__ctex_define:nx {link}
+\bool_set_false:N \l__eb_toc_color_bool
+\__ctex_define:nn {link}
   {
     hyperlink         .choice:,
     hyperlink/edge    .code:n = {},
-    hyperlink/various .code:n = \__eb_put_hyperref:n {colorlinks},
     hyperlink/none    .code:n = \__eb_put_hyperref:n {hidelinks},
+    hyperlink/various .code:n =
+      {
+        \bool_set_true:N \l__eb_toc_color_bool
+        \__eb_put_hyperref:n {colorlinks}
+      },
     hyperlink         .default:n = edge,
     hyperlink         .initial:n = edge,
 
+    linktoc           .choice:,
+    linktoc/unknown   .code:n =
+      {
+        \__eb_put_hyperref:n {linktoc = #1}
+        \clist_map_inline:nn {page,none}
+          {
+            \tl_if_eq:NnT \l_keys_value_tl{##1}
+              {\clist_map_break:n {\colorlet{ctex@toc}{black}}}
+          }
+      },
+    linktoc           .default:n = all,
+    linktoc           .initial:n = all,
+    unknown           .code:n =
+      {
+        \__eb_put_hyperref:x
+          {
+            \l_keys_key_str
+            \tl_if_empty:NF \l_keys_value_tl{ = {#1}}
+          }
+      }
+  }
+\__ctex_define:nx {link}
+  {
     linkcolor         .choice:,
     \clist_map_function:nN
       {
@@ -2532,23 +2536,10 @@ The latest version of this license is in
       \__eb_linkcolor_set:n
     linkcolor         .default:n = navyblue,
     linkcolor         .initial:n = navyblue,
-    linkcol-all       .code:n = \__eb_define_linkcolor:n {\exp_not:n {#1}},
-
-    linktoc           .choice:,
-    linktoc/unknown   .code:n =
-      {\__eb_put_hyperref:n {linktoc = \exp_not:n {#1}}},
-    linktoc           .default:n = all,
-    linktoc           .initial:n = all,
-    unknown           .code:n =
-      {
-        \__eb_put_hyperref:x
-          {
-            \exp_not:N \l_keys_key_str
-            \exp_not:N \tl_if_empty:NF
-            \exp_not:N \l_keys_value_tl{ = \exp_not:n {#1}}
-          }
-      }
+    linkcol-all       .code:n =
+      {\__eb_define_linkcolor:n {\exp_not:n {#1}}}
   }
+\colorlet{ctex@toc}{ctex@link}
 \__ctex_define:nx {style}
   {
     color     .choice:,
@@ -2562,9 +2553,23 @@ The latest version of this license is in
       }
       \__eb_themecolor_set:n
     color     .initial:n = none,
-    color-all .code:n = \__eb_define_themecolor:n {\exp_not:n {#1}}
+    color-all .code:n =
+      {\__eb_define_themecolor:n {\exp_not:n {#1}}}
   }
 
+\cs_new:Npn \__eb_allow_urlbreak:
+  {
+    \cs_new:Npn \__eb_add_urlbreak_points:
+      {\tl_map_function:NN \c__eb_urlbreak_points_tl\do}
+    \__eb_appto_cmd:Nn
+      \UrlBreaks{\UrlOrds\__eb_add_urlbreak_points:}
+  }
+\tl_const:Nn \c__eb_urlbreak_points_tl
+  {
+    ABCDEFGHIJKLMNOPQRSTUVWXYZ
+    abcdefghijklmnopqrstuvwxyz
+    0123456789
+  }
 \ctex_at_end_preamble:n
   {
     \RequirePackage{hyperref}
diff --git a/Master/texmf-dist/tex/latex/easybook/easybook.cls b/Master/texmf-dist/tex/latex/easybook/easybook.cls
index 519d1f72d66..aeb580d2cfe 100644
--- a/Master/texmf-dist/tex/latex/easybook/easybook.cls
+++ b/Master/texmf-dist/tex/latex/easybook/easybook.cls
@@ -13,7 +13,7 @@
 %%   https://creativecommons.org/licenses/by/4.0/legalcode
 \NeedsTeXFormat{LaTeX2e}[2020/10/01]
 \RequirePackage{l3keys2e,etoolbox}
-\ProvidesExplClass{easybook}{2021/04/25}{1.24t}{beta}
+\ProvidesExplClass{easybook}{2021/04/27}{1.24u}{beta}
 
 \cs_generate_variant:Nn \__ctex_define:nn {nx}
 \cs_generate_variant:Nn \int_to_arabic:n {v}
@@ -507,6 +507,7 @@
         \hspace{\use:c {eb@toc@#1@numsep}}
       }{}
   }
+\newtoggle{eb@titletoc@hang@fix}
 \__ctex_define:nn {tocset}
   {
     lists/lolskip     .skip_set:N = \l__eb_toc_lolskip_skip,
@@ -521,29 +522,22 @@
     tocline-fig       .initial:n =
       {
         \figurename\space#1
-        \ifodd\eb@titletoc@hang@fix
-        \else
-          \hspace{\eb@toc@lists@numsep}
-        \fi
+        \iftoggle{eb@titletoc@hang@fix}{}
+          {\hspace{\eb@toc@lists@numsep}}
       },
     tocline-tab       .cs_set:Np = \eb@labelname@lot#1,
     tocline-tab       .initial:n =
       {
         \tablename\space#1
-        \ifodd\eb@titletoc@hang@fix
-        \else
-          \hspace{\eb@toc@lists@numsep}
-        \fi
+        \iftoggle{eb@titletoc@hang@fix}{}
+          {\hspace{\eb@toc@lists@numsep}}
       },
     tocline-lst       .tl_set:N = \eb@labelname@lol,
     tocline-lst       .initial:n =
       {
-        \lstlistingname\space
-        \thelstlisting
-        \ifodd\eb@titletoc@hang@fix
-        \else
-          \hspace{\eb@toc@lists@numsep}
-        \fi
+        \lstlistingname\space\thelstlisting
+        \iftoggle{eb@titletoc@hang@fix}{}
+          {\hspace{\eb@toc@lists@numsep}}
       },
     line-align        .bool_set:N = \l__eb_toc_line_align_bool,
     line-align        .default:n = true,
@@ -552,7 +546,7 @@
     hang              .choice:,
     hang/true         .code:n =
       {
-        \bool_set_true:N \eb@titletoc@hang@fix
+        \toggletrue{eb@titletoc@hang@fix}
         \ctex_set:n
           {
             chapter/tocline = \CTEXnumberline{##1}##2,
@@ -562,7 +556,6 @@
       },
     hang/false        .code:n =
       {
-        \bool_set_false:N \eb@titletoc@hang@fix
         \ctex_set:n
           {
             chapter/tocline = \EbNumberline{##1}##2,
@@ -636,14 +629,15 @@
       [\use:c {l__eb_toc_#2_indent_tl}]
       {\use:c {l__eb_toc_#2_format_tl}}
       {
-        \ifodd\eb@titletoc@hang@fix
-          \contentspush
-            {
-              \color{ctex@link}
-              \thecontentslabel
-              \hspace{\use:c {eb@toc@#2@numsep}}
-            }
-        \fi
+        \iftoggle{eb@titletoc@hang@fix}
+          {
+            \contentspush
+              {
+                \bool_if:NT \l__eb_toc_color_bool{\color{ctex@toc}}
+                \thecontentslabel
+                \hspace{\use:c {eb@toc@#2@numsep}}
+              }
+          }{}
       }{}
       {\use:c {l__eb_toc_#2_rule_tl}}
   }
@@ -669,9 +663,7 @@
   {
     \addcontentsline{#1}{#2}
       {
-        \ifodd\eb@titletoc@hang@fix
-          \protect\numberline
-        \fi
+        \iftoggle{eb@titletoc@hang@fix}{\protect\numberline}{}
         {\prop_item:Nn \l__eb_label_name_prop{#2}{#3}}{#4}
       }
   }
@@ -682,9 +674,7 @@
   }{
     \addcontentsline{lol}{lstlisting}
       {
-        \ifodd\eb@titletoc@hang@fix
-          \protect\numberline
-        \fi
+        \iftoggle{eb@titletoc@hang@fix}{\protect\numberline}{}
         {\eb@labelname@lol}\lst@@caption
       }
   }
@@ -1166,7 +1156,7 @@
       {
         label = (\Alph*),
         after-item-skip = 0ex plus .1ex,
-        column-sep = .5\ccwd,
+        column-sep = \ccwd,
         item-indent = 2\ccwd,
         label-width = 1.5\ccwd
       }
@@ -1278,7 +1268,7 @@
         \end{tcolorbox}
       }{}
     \NewDocumentEnvironment{exercise}
-      {st+O{LightBlue}O{1.}D(){\c__eb_name_exercise_tl}o+O{}+b}
+      {st+O{LightSkyBlue}O{1.}D(){\c__eb_name_exercise_tl}o+O{}+b}
       {
         \IfBooleanTF{#2}
           {
@@ -1602,29 +1592,43 @@
       },
   }
 
-\cs_new:Npn \__eb_allow_urlbreak:
-  {
-    \cs_new:Npn \__eb_add_urlbreak_points:
-      {\tl_map_function:NN \c__eb_urlbreak_points_tl\do}
-    \__eb_appto_cmd:Nn
-      \UrlBreaks{\UrlOrds\__eb_add_urlbreak_points:}
-  }
-\tl_const:Nn \c__eb_urlbreak_points_tl
-  {
-    ABCDEFGHIJKLMNOPQRSTUVWXYZ
-    abcdefghijklmnopqrstuvwxyz
-    0123456789
-  }
-
-\__ctex_define:nx {link}
+\bool_set_false:N \l__eb_toc_color_bool
+\__ctex_define:nn {link}
   {
     hyperlink         .choice:,
     hyperlink/edge    .code:n = {},
-    hyperlink/various .code:n = \__eb_put_hyperref:n {colorlinks},
     hyperlink/none    .code:n = \__eb_put_hyperref:n {hidelinks},
+    hyperlink/various .code:n =
+      {
+        \bool_set_true:N \l__eb_toc_color_bool
+        \__eb_put_hyperref:n {colorlinks}
+      },
     hyperlink         .default:n = edge,
     hyperlink         .initial:n = edge,
 
+    linktoc           .choice:,
+    linktoc/unknown   .code:n =
+      {
+        \__eb_put_hyperref:n {linktoc = #1}
+        \clist_map_inline:nn {page,none}
+          {
+            \tl_if_eq:NnT \l_keys_value_tl{##1}
+              {\clist_map_break:n {\colorlet{ctex@toc}{black}}}
+          }
+      },
+    linktoc           .default:n = all,
+    linktoc           .initial:n = all,
+    unknown           .code:n =
+      {
+        \__eb_put_hyperref:x
+          {
+            \l_keys_key_str
+            \tl_if_empty:NF \l_keys_value_tl{ = {#1}}
+          }
+      }
+  }
+\__ctex_define:nx {link}
+  {
     linkcolor         .choice:,
     \clist_map_function:nN
       {
@@ -1636,23 +1640,10 @@
       \__eb_linkcolor_set:n
     linkcolor         .default:n = navyblue,
     linkcolor         .initial:n = navyblue,
-    linkcol-all       .code:n = \__eb_define_linkcolor:n {\exp_not:n {#1}},
-
-    linktoc           .choice:,
-    linktoc/unknown   .code:n =
-      {\__eb_put_hyperref:n {linktoc = \exp_not:n {#1}}},
-    linktoc           .default:n = all,
-    linktoc           .initial:n = all,
-    unknown           .code:n =
-      {
-        \__eb_put_hyperref:x
-          {
-            \exp_not:N \l_keys_key_str
-            \exp_not:N \tl_if_empty:NF
-            \exp_not:N \l_keys_value_tl{ = \exp_not:n {#1}}
-          }
-      }
+    linkcol-all       .code:n =
+      {\__eb_define_linkcolor:n {\exp_not:n {#1}}}
   }
+\colorlet{ctex@toc}{ctex@link}
 \__ctex_define:nx {style}
   {
     color     .choice:,
@@ -1666,9 +1657,23 @@
       }
       \__eb_themecolor_set:n
     color     .initial:n = none,
-    color-all .code:n = \__eb_define_themecolor:n {\exp_not:n {#1}}
+    color-all .code:n =
+      {\__eb_define_themecolor:n {\exp_not:n {#1}}}
   }
 
+\cs_new:Npn \__eb_allow_urlbreak:
+  {
+    \cs_new:Npn \__eb_add_urlbreak_points:
+      {\tl_map_function:NN \c__eb_urlbreak_points_tl\do}
+    \__eb_appto_cmd:Nn
+      \UrlBreaks{\UrlOrds\__eb_add_urlbreak_points:}
+  }
+\tl_const:Nn \c__eb_urlbreak_points_tl
+  {
+    ABCDEFGHIJKLMNOPQRSTUVWXYZ
+    abcdefghijklmnopqrstuvwxyz
+    0123456789
+  }
 \ctex_at_end_preamble:n
   {
     \RequirePackage{hyperref}