💬 remark -- a simple command to add inline notes in LaTeX

remark.tex

% This source code is licensed under a Creative Commons CC0 license.
% More info at <https://creativecommons.org/publicdomain/zero/1.0/>.

\documentclass[12pt]{article}
\usepackage{xcolor}

\begin{document}

% The main goal is to provide an easy way to write annotations in LaTeX.
% This simple snippet of code should serve as a minimal working example.

% Step one
% ==== ===
% We write a command to describe the style of both the box and the text.
% If you think you can do a better job, feel free to adjust these rules.

\newcommand{\remark}[3]{%
    {\colorbox{#2}{\sffamily\scriptsize\bfseries\textcolor{white}{#1}}}
    {\sffamily\small\itshape\textcolor{#2}{#3}}
}

% Step two
% ==== ===
% We define a new command--using the previously defined one--for each author.
% You can add as many authors as you want; or as many colors as you can name.

\newcommand{\alice}[1]{\remark{Alice}{blue}{#1}}
\newcommand{\bob}[1]{\remark{Bob}{red}{#1}}

% Step three
% ==== =====
% Finally, we add a paragraph with some plain-old vanilla text,
% followed by a couple of inline remarks made by Alice and Bob.

As a minimal working example, we add a paragraph with some plain-old vanilla text.
\alice{This is a quite remarkable paragraph, I must say!}
\bob{Thank you for that insightful inline remark, Alice.}

\end{document}

sample.pdf