修改附录标题的外观

Question

我想修改附录标题的外观。为此，我使用带有以下选项的附录包：

\documentclass[
numbers=noenddot
]{scrreprt}

\usepackage[
    automark,                               %% Kapitelangaben in Kopfzeile automatisch erstellen
    plainheadsepline,                       %% Linie
    plainfootsepline                        %% Linie
]{scrpage2}
\usepackage[ngerman]{babel}                 %% Deutsches Sprachpaket
\usepackage[utf8]{inputenc}                 %% Eingabezeichensatz UTF-8
\usepackage[T1]{fontenc}                    %% Kodierung für Umlaute
\usepackage[
titletoc,
toc, 
page,
title, 
header
]
{appendix}              

\addtokomafont{pageheadfoot}{\small}            %% Kopfzeile klein
\setheadsepline{0.4pt}                          %% Kopf-Linie
\setfootsepline{0.4pt}                          %% Fuß-Linie

\clearscrheadfoot
\pagestyle{scrheadings}
\ihead[]{}
\chead[]{}
\ohead[\headmark]{\headmark}

\ifoot[]{}
\cfoot[\pagemark]{\pagemark}
\ofoot[]{}

\begin{document}

\tableofcontents
\clearpage

\chapter{chapter}

\begin{appendices}
\chapter{Main}
    ...
\chapter{Practical implementation}
    ...
\end{appendices}

\end{document}

但不幸的是，选项 title 和 header 似乎不起作用。它应该看起来像这样：

可能是什么原因？

Answer 1

\KOMAoption{chapterprefix}{true}启动附录后使用。

\documentclass[
ngerman,
numbers=noenddot,
headsepline,
footsepline 
]{scrreprt}

\usepackage[
    automark,       
]{scrlayer-scrpage}

\usepackage{babel}
\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\usepackage{translator}
\usepackage{lmodern}  
\usepackage{setspace}
\usepackage{mwepage}

\usepackage[
titletoc,
toc, 
page,
title, 
header
]{appendix}


\usepackage[stretch=10]{microtype}

\setkomafont{captionlabel}{\bfseries}
\addtokomafont{pageheadfoot}{\small}

\clearpairofpagestyles
\renewcommand{\chapterpagestyle}{scrheadings}
\ohead{\headmark}
\cfoot{\pagemark}


\begin{document}

\tableofcontents

\begin{appendices}
    \KOMAoption{chapterprefix}{true}
\chapter{Wombat}
\chapter{Capybara}
\end{appendices}

\end{document}