I'm setting two texts beside each other in columns using reledmac/reledpar, the right column being a translation (that I'm correcting) of the left column. I'm using the changes package to annotate any corrections I make, and notice that colors "spill over" from the right column to the left, if the colored block spans more than one line. I assume this means that \textcolor pushes onto some color stack, which is preserved between the columns.
Is it possible to remedy this?
MWE, using both commands from from changes as well as manually using \textcolor/\sout; interestingly striking out text works flawlessly (albeit changing hyphenation), whereas it seems \highlight should not be used for more than a single word:
% LATEX_CMD: pdflatex
\documentclass[11pt]{article}
\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\usepackage[normalem]{ulem}
\usepackage[margin=2cm]{geometry}
\usepackage{reledmac}
\usepackage{reledpar}
\usepackage[dvipsnames]{xcolor}
% https://tex.stackexchange.com/a/3706/9742
\def\dout{\bgroup
\markoverwith{\lower-0.2ex\hbox
{\kern-.03em\vbox{\hrule width.2em\kern0.45ex\hrule}\kern-.03em}}%
\ULon}
\MakeRobust\dout
\usepackage{changes}
\definechangesauthor[name=Me, color=red]{ME}
\setcommentmarkup{\footnotesize[\emph{#1}]}
\setdeletedmarkup{\dout{#1}}
\begin{document}
\begin{pairs}
\begin{Leftside}
\beginnumbering
\autopar
\noindent
Lorem ipsum dolor sit amet, consectetur adipiscing
elit. Pellentesque tempus odio non neque finibus tincidunt. Proin
venenatis massa non mattis accumsan. Donec ullamcorper auctor
purus, in accumsan lorem bibendum feugiat. Nam condimentum neque
orci, ut varius eros congue ac. Vestibulum quis mi lacinia,
aliquam nunc non, consequat massa. Proin molestie vehicula arcu
sed commodo. Fusce euismod feugiat volutpat. Praesent porttitor,
urna quis suscipit rutrum, est lorem fringilla dui, id varius
purus magna a erat. Sed at aliquam turpis. Nulla egestas, sapien
non vehicula tincidunt, neque sem gravida ex, vitae faucibus magna
risus sed libero. Vivamus sem neque, lacinia eu vestibulum
aliquet, efficitur nec mauris.
Curabitur ultricies non est in vulputate. Sed sollicitudin est
tortor, vel luctus lectus posuere eget. Etiam ut scelerisque
lectus, quis laoreet leo. Aenean laoreet sem id congue
lacinia. Vivamus elit mi, luctus at aliquam ac, rhoncus sit amet
diam. Maecenas fringilla elit eu pretium molestie. Vivamus eu
mauris vitae libero rutrum fermentum sagittis eu quam. Donec
vehicula scelerisque nisl sit amet porttitor.
\endnumbering
\end{Leftside}
\begin{Rightside}
\beginnumbering
\autopar
\noindent
\sout{Lorem ipsum dolor sit amet, consectetur adipiscing
elit. Pellentesque tempus odio} non neque finibus
tincidunt. Proin venenatis massa non mattis accumsan. Donec
ullamcorper auctor purus, in accumsan lorem bibendum
feugiat. \textcolor{red}{Nam condimentum neque orci, ut varius}
eros congue ac. Vestibulum quis mi lacinia, aliquam nunc non,
consequat massa. Proin molestie vehicula arcu sed commodo. Fusce
euismod feugiat volutpat. Praesent porttitor, urna quis suscipit
rutrum, \dout{est lorem fringilla dui, id varius purus magna a
erat. Sed at} aliquam turpis. Nulla egestas, sapien non vehicula
tincidunt, neque sem gravida ex, vitae faucibus magna risus sed
libero. Vivamus sem neque, lacinia eu vestibulum aliquet,
efficitur nec mauris.
Curabitur ultricies non est in vulputate. Sed sollicitudin est
tortor, vel luctus lectus posuere eget. Etiam
\replaced[id=ME]{Hello there!}{ut scelerisque lectus, quis laoreet
leo. Aenean laoreet sem id congue lacinia. Vivamus} elit mi,
luctus at aliquam ac, rhoncus sit amet diam. Maecenas fringilla
elit eu pretium molestie. \highlight[id=ME]{Vivamus eu mauris
vitae libero rutrum fermentum sagittis eu quam. Donec} vehicula
scelerisque nisl sit amet porttitor.
\endnumbering
\end{Rightside}
\end{pairs}
\Columns
\end{document}
reledmac's issues with text color, I don't know of it. But a good workaround for the line numbers is to define their font color explicitly:\renewcommand{\numlabfont}{\color{black}\normalfont\scriptsize}, this prevents the text color from spilling to the numbers.\southas problems (independently of reledmac): it creates a box and can therefore cause an overfull line (see line 1R in your example!). Maybe switch to\stfrom the soulutf8 package (a revamping of soul w/ better linebreaking). -\highlightalso makes a box and an overfull line, as you noted. Normally, I'd recommend a redefinition via\texthl{}(customizable highlighting cmd fromsoulutf8). But with reledmac, this recreates your issues (the color spills over to the left column).