Add a right to left progress bar

[seloumi]

Hi this is a request to add an RTL progress bar template to use in case of RTL beamer presentation with metropolis theme for progress bar in section page and progress bar in head/foot https://tex.stackexchange.com/q/496489/54817

Here my attempt

\documentclass{beamer}
\usetheme[progressbar=frametitle]{metropolis} 
\title{A minimal example}
\date{\today}
\author{Matthias Vogelgesang}
\institute{Centre for Modern Beamer Themes}

\makeatletter
% define an RTL progress bar  for metropolis theme 

\defbeamertemplate{progress bar in section page}{RTL}{%
	\setlength{\metropolis@progressonsectionpage}{%
		\textwidth * \ratio{\insertframenumber pt}{\inserttotalframenumber pt}%
	}%
	\begin{tikzpicture}
	\fill[bg] (0,0) rectangle (\textwidth, \metropolis@progressonsectionpage@linewidth);
	\fill[fg] (\textwidth,0) rectangle (\textwidth-\metropolis@progressonsectionpage, \metropolis@progressonsectionpage@linewidth);
	\end{tikzpicture}%
}	

\defbeamertemplate{progress bar in head/foot}{RTL}{
	\nointerlineskip
	\setlength{\metropolis@progressinheadfoot}{%
		\paperwidth * \ratio{\insertframenumber pt}{\inserttotalframenumber pt}%
	}%
	\begin{beamercolorbox}[wd=\paperwidth]{progress bar in head/foot}
		\begin{tikzpicture}
		\fill[bg] (0,0) rectangle (\paperwidth, \metropolis@progressinheadfoot@linewidth);
		\fill[fg] (\paperwidth,0) rectangle (\paperwidth-\metropolis@progressinheadfoot, \metropolis@progressinheadfoot@linewidth);
		\end{tikzpicture}%
	\end{beamercolorbox}
}
\makeatother

\setbeamertemplate{progress bar in section page}[RTL]
\setbeamertemplate{progress bar in head/foot}[RTL]

\begin{document}
\maketitle
\section{First Section}
\begin{frame}{First Frame}
Hello, world!
\end{frame}
\section{Second Section}
\begin{frame}{Second Frame}
Hi..
\end{frame}

\end{document}

[KZiemian]

Very interesting. I think it will help me.