A LaTeX template modeled on University of California, Berkeley's (2021) for white papers and reports.
\begin
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% This template was created by Chris Hoofnagle for
% the Berkeley Center for Law & Technology. If you
% work for UCB, you are welcome to use it.
\documentclass[letterpaper,12pt,openbib]{report}
% This is a "report" document class, which means that it has chapters
% and formatting like a book, but fundamentally is a design for
% one-sided printing. There are many options to change the underlying
% design---you can change the font, paper size, etc with these
% options below. Just put the options in the braces of
% \documentclass
% Documentclass: Report Options: a4paper, a5paper, b5paper, letterpaper, legalpaper, landscape, 11pt, 12pt, twoside, twocolumn, notitlepage, openright, draft, fleqn, leqno, openbib
%\usepackage[utf8]{inputenc}
\usepackage{graphicx}
\usepackage{lipsum} % generates lorem ipsum filler text
\usepackage[most,many,skins,breakable]{tcolorbox}
\usepackage{xcolor}
\usepackage{tikz}
\usepackage{tikzpagenodes}
\tcbuselibrary{skins,breakable,xparse}
\usepackage{fancyhdr}
\usepackage[default,scale=0.95]{opensans}
\usepackage[hidelinks]{hyperref} % the hidelinks option prevents those terrible boxes from appearing in your print pdf
\usepackage[backend=biber,language=american,style=verbose]{biblatex}
\addbibresource{bibliography.bib}
\usepackage[headheight=15pt,hmarginratio=1:1]{geometry}
%%%%%%%%%%%%%%%%%%%%%%%%
%
% Berkeley Colors - Global (changing these will alter the whole
% document)
%
%%%%%%%%%%%%%%%%%%%%%%%%
% Deep blue and gold
\definecolor{berkeleyblue}{HTML}{003262}
\definecolor{berkeleygold}{HTML}{FDB515}
% Light blue and gold
\definecolor{founderblue}{HTML}{3B7EA1}
\definecolor{founderyellow}{HTML}{C4820E}
%%%%%%%%%%%%%%%%%%%%%%%%
%
% Headings
%
%%%%%%%%%%%%%%%%%%%%%%%%
\fancyhf{}
% If you'd like, you can put the title of the report in the header
% Just erase title of report if not
\small\fancyhead[R] {\color{founderblue}Title of Report ~ \thepage}
% This adds the line below the header. You can make it thicker or thinner by editing the 0.4 value
\renewcommand{\headrulewidth}{0.4pt}
% This template only uses a header because a document with footnotes
% looks strange with a footer. But if you want a footer, just
% uncomment the lines below
%\small\fancyfoot[R] {\color{founderblue}Title of Report ~ \thepage}
%\renewcommand{\footrulewidth}{0.0pt}
%%%%%%%%%%%%%%%%%%%%%%%%
%
% Customizing Fonts & Title Formats - Global
%
%%%%%%%%%%%%%%%%%%%%%%%%
% This section specifies the fonts and their sizes and
% colors for the headings. Notice that the package gives
% you serif headings and san serif body text.
\usepackage{titlesec}
\usepackage{fontspec}
% The headings are Berkeley's Old Style Fonts!
% I don't like the new fonts, which are licensed from
% Adobe --- why would you do that?
\newfontfamily\headingfont{UCBerkeleyOS.otf}[
BoldFont = UCBerkeleyOSBold.otf,
ItalicFont = UCBerkeleyOSItalic.otf,
BoldItalicFont = UCBerkeleyOSBoldItalic.otf]
% This controls the chapter headings
\titleformat{\chapter}{\fontsize{30}{60}\headingfont}{\color{founderblue}\thechapter\fontsize{90}{60}}{10pt}{\thispagestyle{empty}\color{founderblue}\Huge\bfseries}
% This controls the section and subsection headings in the chapters
% Notice that the headings in the chapter are numbered, e.g.
% 1.1 A Lesson in Latin. If you don't want section numbering,
% remove \thesection and/or \thesubsection
\titleformat{\section}{\Large\headingfont}{}{0pt}{\color{founderblue}{\thesection} \ }[{\titlerule[0.8pt]}]
\titleformat{\subsection}{\large\headingfont}{}{0pt}{\color{founderblue}{\thesubsection} \ }[{\titlerule[0.8pt]}]
% This customizes the sections in the executive summary so that they
% will not be numbered.
\titleformat{name=\section,numberless}
{\Large\headingfont}{}{-4pt}{\color{founderblue} \ }[{\titlerule[0.8pt]}]
\titleformat{name=\subsection,numberless}
{\large\headingfont}{}{-4pt}{\color{founderblue} \ }[{\titlerule[0.8pt]}]
%%%%%%%%%%%%%%%%%%%%%%%%
%
% Sidebar Environment: mdframed
%
%%%%%%%%%%%%%%%%%%%%%%%
\usepackage{amstext}
\usepackage{mathtools}
\usepackage[framemethod=TikZ]{mdframed}
\mdfdefinestyle{custom}{frametitle={\colorbox{berkeleygold}{\space You must specify a title for your box \space}},
frametitlefont=\textbf,
backgroundcolor=founderblue!20,
linecolor=founderblue!70,
innertopmargin=10pt,
frametitleaboveskip=-\ht\strutbox,
skipabove=\topskip,
skipbelow=\topskip}
%\newenvironment{sidebar}[1]
% \mdfsetup{%
% % Replace berkeleygold with white if you'd like
% frametitle={\colorbox{berkeleygold}{\space#1\space}},
% frametitlefont=\textbf,
% backgroundcolor=founderblue!20,
% linecolor=founderblue!70,
% innertopmargin=10pt,
% frametitleaboveskip=-\ht\strutbox,
% % frametitlealignment=\left,
% skipabove=\topskip,
% skipbelow=\topskip
% }%
% \begin{mdframed}%
% }
% {\end{mdframed}}
%%%%%%%%%%%%%%%%%%%%%%%%
%
% Sidebars with tcolorbox -- Mybox
%
%%%%%%%%%%%%%%%%%%%%%%%
\newtcolorbox{mybox}[2][]{enhanced, interior hidden,
coltitle=black, fonttitle=\bfseries\headingfont\large,
attach boxed title to top left={yshift=-2.5mm},
boxed title style={empty, size=small, top=1mm, bottom=2pt},
%boxed title=0.5\linewidth,
frame code={
\path (title.east|-frame.north) coordinate (aux);
\path[draw=founderblue, fill=founderblue!20, line width=0.5mm, rounded corners]
(frame.west) |- ([xshift=-2.5mm]title.north east) to[out=0, in=180] ([xshift=7.5mm]aux)-|(frame.east)|-(frame.south)-|cycle;
},
title={#2},#1}
%%%%%%%%%%%%%%%%%%%%%%%%
%
% General Guidance
%
%%%%%%%%%%%%%%%%%%%%%%%
%\flushbottom
%The \flushbottom declaration makes all text pages the same height, adding extra vertical space when necessary to fill out the page.
%\onecolumn
%The \onecolumn declaration starts a new page and produces single-column output.
%\raggedbottom
%The \raggedbottom declaration makes all pages the height of the text on that page. No extra vertical space is added.
%\twocolumn
%The \twocolumn declaration starts a new page and produces two-column output.
%%%%%%%%%%%%%%%%%%%%%%%%
%
% Document Content Starts Here
%
%%%%%%%%%%%%%%%%%%%%%%%
\title{Put title here, and in the title.tex file}
\begin{document}
% The title page appearance is controlled by a separate file named titlepage.tex
\include{titlepage}
% This makes the report have a white background
\pagecolor{white}
% Just comment out the next lines if you
% do not want a table of contents
% This adds the Executive Summary to the TOC w/o a number
\addcontentsline{toc}{chapter}{Executive Summary}
\tableofcontents
% Note: to have a conclusion in the TOC without a number
% the addcontentsline command appears after \include conclusion
% below
% The content of the report is in subfiles that are
% imported below with the include command
% You can create more "chapters" by copying the chapter.tex
% files and using \include{chapterX} to include them in
% the report
\include{execsummary}
\include{chapter1}
\include{chapter2}
\include{chapter3}
%\include{chapter4}
%include{chapter5}
\include{conclusion}
% This adds the conclusion to the TOC without a number
\addcontentsline{toc}{chapter}{Conclusion}
% It is possible to add a bibliography here
\printbibliography
\include{backcover}
% This code creates decorative `colorboxes' for text
% illustrations and the like. Just uncomment it and place
% it in a chapter
% \begin{tcolorbox}[breakable,title={An example colorbox},
% colback=founderblue!5!white,
% colframe=founderblue!75!black,
% fonttitle=\headingfont\bfseries\large]
% Your text goes here.
% \tcbsubtitle[before skip=\baselineskip]%
% {You can also have subboxes}
% with extra content
% \tcbsubtitle[before skip=\baselineskip]%
% {Multiple rows}
% If you like it.
% \end{tcolorbox}
% This code creates a decorative text box.
% Just uncomment it and place
% it in a chapter
% \begin{mybox}{Hello World!}
% This is the mybox environment.
% However, the problem with mybox is that they cannot break across pages :( So, they have to be pretty short. Otherwise use the colorbox
% \end{mybox}
\end{document}