% !TEX TS-program = XeLaTeX
% !TEX encoding = UTF-8 Unicode


\documentclass{beamer}

\usetheme{PaloAlto}

\usepackage[RTLdocument=on]{bidi}

\setbeamersize{sidebar width right=0.4cm}
\setbeamertemplate{sidebar canvas right}[horizontal shading][left=cyan!70,right=cyan!70]

\title{test sidebar canvas with bidi}
\author{M.Ahmadi}

\begin{document}

\begin{frame}{title}
test bidi version=\bidiversion
\end{frame}

\end{document}