¿Cómo romper tcolorbox "en línea" cuando el texto cambia a una nueva línea?

Question

Si lo uso tcolorboxcomo resaltador, ¿cómo puedo romper el cuadro si cambio a una nueva línea?

\documentclass[11pt]{article}
\usepackage[dvipsnames]{xcolor}
\usepackage[most]{tcolorbox}

\newtcbox{\hlbox}[1][cyan]{enhanced jigsaw,on line, arc=0pt,outer arc=0pt,colback=#1!10!white,colframe=#1!80!black, boxsep=0pt,left=3pt,right=3pt,top=2pt,bottom=2pt, boxrule=0pt,bottomrule=1pt,toprule=1pt,breakable}

\begin{document}
The Canton System was a trade policy implemented by the Qing Dynasty in the 18th and 19th centuries that \hlbox[LimeGreen]{restricted foreign trade to the port of Canton (now Guangzhou) in southern China}.
\end{document}

Answer 1

Acabo de recibir una solución increíble demuzimuchide Github.

Podríamos usar soulposel paquete junto con \tcbox.

\documentclass{article}
\usepackage{lipsum}
\usepackage{multicol}
\usepackage{soulpos}
\usepackage{tcolorbox}

\colorlet{ul}{red}
\newtcbox{\mybox}{
  on line,
  arc=0pt, outer arc=0pt,
  colback=ul!10!white, colframe=ul!50!black,
  boxsep=0pt, left=1pt, right=1pt, top=2pt, bottom=1pt,
  boxrule=0pt, bottomrule=1pt, toprule=1pt
}

\makeatletter
\newcommand\myul[1][red]{%
  \UseName{str_if_eq:nnF}{#1}{red}{\colorlet{ul}{#1}}
  \myul@}

\ulposdef\myul@[xoffset-start=1pt]{%
  \mybox{\vphantom{AHpgjy}\rule{\ulwidth}{0pt}}}
\makeatother

\begin{document}
\begin{multicols}{2}
  Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do
  eiusmod tempor incididunt ut labore et dolore magna aliqua.
  \newcolumn
  
  Lorem ipsum dolor sit amet, consectetur \myul{adipiscing elit, sed do
  eiusmod tempor} incididunt ut labore et dolore
  \myul[green]{magna aliqua.}
\end{multicols}

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nunc facilisis vitae massa nec cursus. Fusce faucibus gravida dolor. Cras egestas eget nulla ut consequat. Nulla eu mi at mauris feugiat ornare. Etiam a efficitur sem, et scelerisque massa. Sed ipsum justo, posuere vitae leo vitae, fermentum dictum lacus. Morbi et ipsum vel neque congue elementum. In dolor orci, hendrerit vitae sagittis sit amet, pellentesque a magna.

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nunc facilisis vitae massa nec cursus. Fusce faucibus gravida dolor. Cras egestas eget nulla ut consequat. Nulla eu mi at mauris feugiat ornare. \myul[orange]{Etiam a efficitur sem, et scelerisque massa. Sed ipsum justo, posuere vitae leo vitae, fermentum dictum lacus.} Morbi et ipsum vel neque congue elementum. In dolor orci, hendrerit vitae sagittis sit amet, pellentesque a magna.
\end{document}

que produce:

Consulte Github enaquí.