I tried to change the part name in the toc to upper case letter but unfortunately it doesn't work. Has someone an idea how to change the title to upper case but to set the partnumber to lower case(in the normalfont) without effecting the partpage?
\documentclass[ final,
fontsize=12pt,
open=right,
twoside = true,
paper=a4,
listof=totoc,
captions=tableheading,
listof=totoc,
numbers=noenddot,
headings=big,
chapterprefix=false] %
{scrreprt}
\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}
\usepackage{blindtext}
\usepackage{color}
\usepackage{xcolor}
\setkomafont{disposition}{\rmfamily}
\addtokomafont{chapter}{\normalsize\scshape}
\setkomafont{sectioning}{\rmfamily}
\addtokomafont{section}{\normalsize\scshape}
\addtokomafont{subsection}{\normalsize\itshape}
\setkomafont{chapterentry}{\mdseries\scshape\lowercase}
\setkomafont{chapterentrypagenumber}{\normalfont\normalcolor}
\usepackage{lmodern}
%Part
\RedeclareSectionCommand[tocnumwidth=1.1em]{part}
\RedeclareSectionCommand[innerskip=0mm]{part}
\renewcommand*{\partpagestyle}{empty}
\setkomafont{part}{\large\color{red}\scshape\MakeUppercase}
\setkomafont{partnumber}{\large}
\setkomafont{partentry}{\color{red}\scshape%\MakeUppercase
} %%?????
\setkomafont{partentrypagenumber}{\normalfont\color{red}}
\begin{document}
\pagenumbering{roman}
\tableofcontents
\listoffigures
\listoftables
\newpage
\pagenumbering{arabic}
\part{Stuff}
\blinddocument
\part{More Stuff}
\blinddocument
\end{document}