From 095d7f3d10da0be4eda57a6e1427763cd7f3eecd Mon Sep 17 00:00:00 2001
From: Christoph Urlacher <christoph.urlacher@protonmail.com>
Date: Thu, 10 Sep 2026 17:34:52 +0200
Subject: [PATCH] Update box styling

---
 chapters/examples/examples.tex |  15 +----
 preamble.tex                   | 100 ++++++++++++++++++++++++---------
 2 files changed, 76 insertions(+), 39 deletions(-)

diff --git a/chapters/examples/examples.tex b/chapters/examples/examples.tex
index 936c83f..d9e1990 100644
--- a/chapters/examples/examples.tex
+++ b/chapters/examples/examples.tex
@@ -21,7 +21,7 @@ This is a formula: \( \sum\limits_{f=1}^{\infty}\frac{o}{r}\cdot m_{u} + l^{a} \
 This is \textbf{bold text that is slightly bold}, so underwhelming.
 In contrast, \sansbf{this text is very strong}, very cool\footnote{very cool}.
 
-\begin{codeblock}[label=lst:examplelisting]{This is a listing}{C++}
+\begin{codeblock}[label=lst:examplelisting]{This is a listing.}{C++}
   \inputminted{cpp}{\subfix{listings/example.cpp}}
 \end{codeblock}
 
@@ -33,24 +33,15 @@ In contrast, \sansbf{this text is very strong}, very cool\footnote{very cool}.
   \caption{This is a figure.}\label{fig:examplefigure}
 \end{figure}
 
-\begin{figure}[H]
-  \centering
-  \begin{subfigure}[b]{\textwidth}
-    \includesvg[width=1.0\linewidth]{\subfix{figures/heatmap2.svg}}
-  \end{subfigure}
-  \caption{This is another figure.}\label{fig:exampleheatmap}
-\end{figure}
-
 \begin{table}[H]
   \centering
   \begin{tabularx}{\textwidth}{lX}
     Column A & Column B                                                                                                                 \\
-    \toprule
+    \midrule
     This is  & a table where the right column does automatic line breaking, so long cell contents don't exceed the page boundary. Cool. \\
     This is  & an second row.                                                                                                           \\
-    \bottomrule
   \end{tabularx}
-  \caption{This is a table}\label{tab:exampletable}
+  \caption{This is a table.}\label{tab:exampletable}
 \end{table}
 
 \lipsum%
diff --git a/preamble.tex b/preamble.tex
index c8bca66..adaa05c 100644
--- a/preamble.tex
+++ b/preamble.tex
@@ -275,7 +275,7 @@
   nobeforeafter,
   boxrule=0pt,
   colback=languagebg,
-  arc=2pt,
+  arc=3pt,
   boxsep=0pt,
   left=3pt,
   right=3pt,
@@ -300,11 +300,11 @@
       top color=codebg,
       bottom color=codebg
     },
-  boxrule=0.5pt, % Border width
-  arc=2pt, % Rounded corners
+  boxrule=1pt, % Border width
+  arc=4pt, % Rounded corners
   width=\linewidth,
   fonttitle=\normalsize,
-  adjusted title=\textbf{\texttt{\thetcbcounter}\hspace{0.75em}\texttt{#2}},
+  adjusted title=\textbf{\texttt{Listing \thetcbcounter.}\hspace{0.75em}\texttt{#2}},
   list entry=\thetcbcounter\quad\texttt{#2}, % List of listings
   list text={\hspace*{1ex}#2}, % Chapter - Caption spacing in list of listings
   after title={% Display used language
@@ -319,7 +319,8 @@
   top=1mm,
   bottom=1mm,
   right=0mm,
-  left=5mm,
+  left=4.3mm,
+  drop shadow=titlebg!50!white,
   #1 % Extra args, e.g. a label
 }
 
@@ -341,32 +342,77 @@
 }
 
 % A box surrounding inline code-type text
-\newtcbox{\codehighlight}{nobeforeafter,boxrule=.5pt,colback=black!5,colframe=black!35,
-  arc=2pt,boxsep=0pt,left=2pt,right=2pt,top=2pt,bottom=2pt, tcbox raise base}
+\newtcbox{\codehighlight}{
+  nobeforeafter,
+  boxrule=.5pt,
+  colback=black!5,
+  colframe=black!35,
+  arc=2pt,
+  boxsep=0pt,
+  left=2pt,
+  right=2pt,
+  top=2pt,
+  bottom=2pt,
+  tcbox raise base
+}
 
 % Quickly place inline codehighlight boxes
 \newcommand{\code}[1]{\codehighlight{\texttt{\small{#1}}}}
 
-% A box surrounding figures
-\tcolorboxenvironment{figure}{
-  enhanced,
-  float=htb,
-  arc=2pt,
-  boxrule=0.5pt,
-  colframe=black,
-  colback=white,
-  before skip=\intextsep,
-  after skip=\intextsep,
+% Boxes for figures and tables use the same title bar as code listings.
+% Existing \caption and \label commands still work.
+\tcbset{captionbox/.style={
+      enhanced,
+      arc=4pt,
+      boxrule=1pt,
+      boxsep=1mm,
+      left=4mm, right=4mm,
+      lefttitle=4mm, righttitle=4mm,
+      colbacktitle=titlebg,
+      coltitle=titlecolor,
+      colframe=titlebg,
+      colback=white,
+      fonttitle=\normalsize\bfseries\ttfamily,
+      drop shadow=titlebg!50!white,
+    }}
+
+% Captions
+\captionsetup[captionbox]{
+  font={normalsize,bf,tt,color=titlecolor},
+  labelfont={bf,tt},
+  labelsep=quad,
+  margin=0pt,
+  justification=raggedright,
+  singlelinecheck=false,
+  skip=0pt,
 }
 
-% A box surrounding tables
-\tcolorboxenvironment{table}{
-  enhanced,
-  float=htb,
-  arc=2pt,
-  boxrule=0.5pt,
-  colframe=black,
-  colback=white,
-  before skip=\intextsep,
-  after skip=\intextsep,
+% Subcaptions
+\captionsetup[sub]{
+  font={normalfont,small,color=black},
+  labelfont={normalfont,bf},
 }
+\makeatletter
+\newcommand{\fs@captionbox}{%
+  \fs@plain%
+  \def\@fs@pre{%
+    \begin{tcolorbox}[captionbox,title={\unvbox\@floatcapt}]
+      }
+      \def\@fs@post{\end{tcolorbox}}
+  \def\@fs@mid{}
+  \let\@fs@iftopcapt\iffalse%
+}
+\makeatother
+
+% Reserve padding
+\newcommand{\captionboxwidth}{%
+  \hsize=\dimexpr\linewidth-10mm-1pt\relax
+  \linewidth=\hsize
+  \textwidth=\hsize
+}
+\floatstyle{captionbox}
+\restylefloat{figure}
+\restylefloat{table}
+\floatevery{figure}{\captionboxwidth}
+\floatevery{table}{\captionboxwidth}
+\floatstyle{plain}