\ProvidesFile{testlco.lco}[2022/01/08 letter class option]
\RequirePackage{ngerman}                % Deutsche Sprache
\RequirePackage{fix-cm}
\RequirePackage[T1]{fontenc}            % Ligaturschriften
\RequirePackage[utf8]{inputenc}      % Eingabezeichensatz
\RequirePackage{graphicx}               % Grafikpaket
\RequirePackage{hyperref}
\RequirePackage{xcolor}
\hypersetup{pdfpagemode=None}
\KOMAoptions{
        paper=a4,
        pagenumber=botcenter,
        fromalign=right,
        fromrule=afteraddress,
        fromphone,
%       fromfax,
        fromlogo,fromemail,
        backaddress,
        foldmarks,
%        headsepline,footsepline,
        enlargefirstpage
}
\setkomavar{fromname}{Max Mustermann}
\setkomavar{fromaddress}{Musterstraße 11\\12345~Musterstadt}
\setkomavar{fromphone}{+49\,(0)\,151\,1111 22 33}
\setkomavar{fromemail}{max.mustermann@gmx.de}

\setkomavar{fromlogo}{\parbox[b]{8cm}{\usekomafont{fromaddress}%
        {\mbox{\LARGE \bfseries \textcolor{black!60!white}{Max} Mustermann}}
        \smallskip}
}
\setkomafont{backaddress}{\sffamily}
\setkomafont{fromaddress}{\sffamily}
\addtokomafont{fromname}{\scriptsize}
\addtokomafont{fromaddress}{\scriptsize}
\pagestyle{headings}