Colored hebrew vowels in Xelatex

Question

I'm using xelatex to write some grammatical remarks of biblical Hebrew. I need a different color for some vowels, for example, to illustrate some suffixes. I can't get a correct position of vowel when I change the color. In the MWE you get twice the expression "my horse". Note the different position of vowel.

I review some other similar questions (posted here 10 years ago or more, with no solutions at the time).

% !TEX program = xelatex
\documentclass{minimal}
\usepackage{xcolor}
\usepackage{polyglossia} 
\setdefaultlanguage{english}  
\setotherlanguages{hebrew}
\newfontfamily\hebrewfont[Scale=5]{SBL Hebrew} 
\def\r{\color{red}}
\begin{document}

\begin{hebrew}
      סוּסִי
  סוּס\r ִי
\end{hebrew}
\end{document}

I added here also an image of the expected result in xelatex, but made with Inkscape.

Answer 1

Following the advice given by Ulrike Fischer and Javier Bezos, here's an approach that uses LuaLaTeX, babel, and luacolor instead of XeLaTeX, polyglossia, and color.

% !TEX program = lualatex
\documentclass{article}

\usepackage{luacolor}
\def\r{\color{red}}

\usepackage[english, bidi=default]{babel}
\babelprovide[import]{hebrew}
\babelfont{rm}{SBL Hebrew}

\begin{document}

hello \foreignlanguage{hebrew}{סוּס\r ִי} world

\end{document}