std_artcl.tex

\documentclass[a4paper,12pt]{scrartcl}

% ========= Basic Packages =========
\usepackage{mathtools,amssymb}
\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\usepackage[english]{babel}
\usepackage{csquotes}
\usepackage[style=authoryear,sortcites=true,sorting=nyt,backend=biber,maxcitenames=2]{biblatex}
\usepackage{xpatch}

% ============ Useful Packages =================
\usepackage{amsthm,abstract,xcolor}
\usepackage[inline]{enumitem}
\usepackage{stix2} % Text and math font 

% ============== Various Configurations ============

% Mathematics
\DeclareMathOperator*{\argmax}{argmax}
\DeclareMathOperator*{\argmin}{argmin}


% Redefining eqref command
\xpretocmd{\eqref}{Eq.~}{}{}

% Creating new environments
\newtheorem{lemma}{Lemma}
\newtheorem{prop}{Proposition}
\newtheorem{defn}{Definition}

% Defining custom colors
\definecolor{midnightblue}{rgb}{0.1, 0.1, 0.44}
\definecolor{bostonuniversityred}{rgb}{0.8, 0.0, 0.0}
\definecolor{cornellred}{rgb}{0.7, 0.11, 0.11}

\usepackage[colorlinks=true,allcolors=midnightblue]{hyperref}

\DeclareCiteCommand{\cite}
  {\color{midnightblue}\usebibmacro{prenote}}%
  {\usebibmacro{citeindex}%
   \usebibmacro{cite}}
  {\multicitedelim}
  {\usebibmacro{postnote}}

\DeclareCiteCommand{\parencite}[\mkcolorbibparens]
  {\usebibmacro{prenote}}%
  {\usebibmacro{citeindex}%
   \usebibmacro{cite}}
  {\multicitedelim}
  {\usebibmacro{postnote}}
  
  \makeatletter
\newrobustcmd{\mkcolorbibparens}[1]{%
  \begingroup
  \color{midnightblue}%
  \blx@blxinit
  \blx@setsfcodes
  \bibopenparen#1\bibcloseparen
  \endgroup}
\makeatother

\newcommand{\colortextcite}[1]{\textcolor{midnightblue}{\textcite{#1}}}

% Redefining abstract environment
\renewenvironment{abstract}{%
\par\noindent\begin{minipage}{\textwidth}
\rule{\textwidth}{1pt}\\
\textbf{Abstract:}}
{\par\noindent\rule{\textwidth}{1pt}\end{minipage}}
%
\makeatletter
\renewcommand\@maketitle{%
\hfill
\begin{minipage}{\textwidth}
\vskip 2em
\let\footnote\thanks
{\LARGE \@title \par }
\vskip 1.5em
{\large \@author \par }
\end{minipage}
\vskip 1em \par
}
\makeatother

% Formatting citations
\AtEveryBibitem{
	\clearfield{month}
	}
\DeclareLanguageMapping{american}{american-apa}

% Removes "retrieved from on date" from bibliography entry unless it is a wiki URL, which is closer to the spirit of APA's rule. See biblatex-apa documentation for more info.
\DeclareSourcemap{
	\maps[datatype=bibtex]{
		\map{
			\step[fieldsource=url,
			notmatch=\regexp{wiki},
			final=1]
			\step[fieldset=urldate, null]
			}
		}
	}

\renewcommand*{\nameyeardelim}{\addcomma\space} % Include comma in authoryear citation style

\addbibresource{bibliography.bib} % Bib source


\title{}
\author{}
\date{}

\begin{document}

\maketitle


\end{document}