Beamer navigation sidebar: change colors of name and title

Question

i set up a navigation bar to the right using: \useoutertheme[right,width = 3cm]{sidebar}

Now it looks like this:

First Question:

How can i change the color of the title "The Title"?

In the manual i only found the setbeamercolor{section in sidebar}{...} but i couldn't find the name of the title. title in sidebar did not work.

Second Question:

Is it possible to change the alignment of the sections (testsection,hallo) to centered and leave out the subsection or to draw a vertical line on the left side of the sidebar?

EDIT: Minimum Working Example:

%%% For normal presentations
%\documentclass{beamer}
%%%

%%% For handouts with lots of extra notes
\documentclass[handout]{beamer}
\usepackage{pgfpages}

\title{The Title}
\author{The Author}
%\usetheme{Copenhagen}
\useoutertheme[right,width = 3cm]{sidebar}
\begin{document}
\section{testsection}
\begin{frame}
Here's some content, with no notes added.
\end{frame}
\section{hallo}
\begin{frame}
Here's some content, with notes added.
\end{frame}
\section{asdf}


\end{document}

Answer 1

1. To change the colour of the title:

   \setbeamercolor{title in sidebar}{fg=red}
   

2. The option hideallsubsections will hide the subsections

3. To centre the content of the sidebar, you can add center to the sidebar format

---

\documentclass{beamer}

\title{The Title}
\author{The Author}
\useoutertheme[right,width = 3cm,hideallsubsections]{sidebar}

\setbeamercolor{title in sidebar}{fg=red}


\makeatletter
\def\beamer@sidebarformat#1#2#3{%
  \begin{beamercolorbox}[wd=\beamer@sidebarwidth,leftskip=#1,rightskip=1ex plus1fil,vmode,center]{#2}
    \vbox{}%
    #3\par%
    \vbox{}%
    \vskip-1.5ex%
  \end{beamercolorbox}
}
\makeatother

\begin{document}

\section{testsection}
\subsection{subsection name}
\begin{frame}
Here's some content, with no notes added.
\end{frame}

\section{hallo}
\begin{frame}
Here's some content, with notes added.
\end{frame}

\end{document}