The problem goes away in the minimal example I created if I remove this:
\usepackage[colorlinks=true ,urlcolor=blue,urlbordercolor={0 1 1}]{hyperref}
However, in my real document, I have links that I want to be appeared as
So, what to do to set the color of the contents back to black?
The minimal example is this:
\documentclass{article}
% If I uncomment that, the contents are colored red!
%\usepackage[colorlinks=true ,urlcolor=blue,urlbordercolor={0 1 1}]{hyperref}
\author{George Samaras}
%\usepackage{graphicx}
%\usepackage{amsmath}
%\usepackage{bm}
%\usepackage{enumitem}
\newcommand{\tab}{\hspace*{1.2em}}
\begin{document}
\title{Software \& algorithms survey for a distributed linear algebra library}
\maketitle
\begin{abstract}
In this document, we list packages that aim to provide linear algebra operations (such us inversion) in a distributed environment. Moreover, we briefly present some relevant algorithms.
\end{abstract}\par
\tableofcontents
\section{bla}
fdhfkd
\subsection{foo}
dsjhkds
\end{document}