feat!: use beamer's own frame numbering template

As suggested in https://github.com/matze/mtheme/issues/309

demo/demo.tex

@@ -4,13 +4,18 @@
 
 \usepackage[T1]{fontenc}
 
-\usepackage{appendixnumberbeamer}
+% \usepackage{appendixnumberbeamer}
+
+\setbeamertemplate{page number in head/foot}[appendixframenumber]
+
+% \molochset{progressbar=foot}
 
 \usepackage{booktabs}
 \usepackage[scale=2]{ccicons}
 
-\usepackage[medium,light]{FiraSans}
+% \usepackage[medium,light]{FiraSans}
-\usepackage[medium]{FiraMono}
+% \usepackage[medium]{FiraMono}
+\usepackage{lmodern}
 
 \usepackage{xspace}
 
@@ -263,16 +268,6 @@
 
 \appendix
 
-\begin{frame}[fragile]{Backup Slides}
-  To add slides at the end of your presentation for reference during audience questions, you just need to
-  \begin{enumerate}
-    \item include the "appendixnumberbeamer" package in your preamble, and
-    \item call \verb+\appendix+ command before your backup slides.
-  \end{enumerate}
-
-  By doing this, the \themename theme will automatically disable slide numbering and progress bars for the slides in the appendix.
-\end{frame}
-
 \begin{frame}[allowframebreaks]{References}
 
   \bibliography{demo}

doc/moloch.tex

@@ -283,12 +283,6 @@ The list of options is structured as shown in the following example.
 
 \subsubsection{Outer theme}
 
-\DescribeOption{numbering}{none, counter, fraction}{counter}{
-  Controls whether the frame number at the bottom right of each slide is
-  omitted (|none|), shown (|counter|) or displayed as a fraction of the total
-  number of frames (|fraction|).
-}
-
 \DescribeOption{progressbar}{none, head, frametitle, foot}{none}{
   Optionally adds a progress bar to the top of each frame (|head|),
   the bottom of each frame (|foot|), or directly below each frame title
@@ -367,16 +361,6 @@ single sentence or image. To use it, add the key |standout| to the frame:
 
 \section{Tips \& Tricks}
 
-\subsection{Backup Slides}
-
-Speakers will often include extra slides at the end of their presentation to
-refer to during audience questions. One easy way to do this is to include the
-\verb|appendixnumberbeamer| package in your preamble and call \verb|\appendix| before your backup slides.
-
-\themename will automatically turn off slide numbering and progress bars for
-slides in the appendix.
-
-
 \section{Known Issues}
 
 \subsection{Title formats}

src/beamerfontthememoloch.dtx

@@ -48,7 +48,6 @@
 \setbeamerfont{caption}{size=\small}
 \setbeamerfont{caption name}{series=\bfseries}
 \setbeamerfont{description item}{series=\bfseries}
-\setbeamerfont{page number in head/foot}{size=\scriptsize}
 \setbeamerfont{bibliography entry author}{size=\normalsize, series=\normalfont}
 \setbeamerfont{bibliography entry title}{size=\normalsize, series=\bfseries}
 \setbeamerfont{bibliography entry location}{size=\normalsize, series=\normalfont}

src/beamerouterthememoloch.dtx

@@ -40,19 +40,6 @@
 %
 % \subsubsection{Options}
 %
-% \begin{macro}{numbering}
-%    Adds slide numbers to the bottom right of each slide.
-%    \begin{macrocode}
-\pgfkeys{
-  /moloch/outer/numbering/.cd,
-  .is choice,
-  none/.code=\setbeamertemplate{frame numbering}[none],
-  counter/.code=\setbeamertemplate{frame numbering}[counter],
-  fraction/.code=\setbeamertemplate{frame numbering}[fraction],
-}
-%    \end{macrocode}
-% \end{macro}
-%
 % \begin{macro}{progressbar}
 %    Adds a progress bar to the top, bottom, or frametitle of each slide.
 %    \begin{macrocode}
@@ -88,7 +75,6 @@
 %    \begin{macrocode}
 \newcommand{\moloch@outer@setdefaults}{
   \pgfkeys{/moloch/outer/.cd,
-    numbering=counter,
     progressbar=none,
   }
 }
@@ -106,22 +92,6 @@
 \setbeamertemplate{navigation symbols}{}
 %    \end{macrocode}
 %
-% \begin{macro}{frame numbering}
-%    Templates for the frame number. Can be omitted, shown or displayed as a
-%    fraction of the total frames.
-%    \begin{macrocode}
-\defbeamertemplate{frame footer}{none}{}
-\defbeamertemplate{frame footer}{custom}[1]{ #1 }
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\defbeamertemplate{frame numbering}{none}{}
-\defbeamertemplate{frame numbering}{counter}{\insertframenumber}
-\defbeamertemplate{frame numbering}{fraction}{
-  \insertframenumber/\inserttotalframenumber
-}
-%    \end{macrocode}
-% \end{macro}
 %
 % \begin{macro}{headline}
 % \begin{macro}{footline}
@@ -129,11 +99,16 @@
 %    \begin{macrocode}
 \defbeamertemplate{headline}{plain}{}
 \defbeamertemplate{footline}{plain}{%
-  \begin{beamercolorbox}[wd=\textwidth, sep=3ex]{footline}%
+  \begin{beamercolorbox}[
+      leftskip=4pt,%
+      rightskip=5pt,%
+      wd=\textwidth,%
+    ]{footline}%
+    \usebeamercolor[fg]{page number in head/foot}%
     \usebeamerfont{page number in head/foot}%
-    \usebeamertemplate*{frame footer}
+    \usebeamertemplate*{frame footer}%
     \hfill%
-    \usebeamertemplate*{frame numbering}
+    \usebeamertemplate*{page number in head/foot}\vskip4pt%
   \end{beamercolorbox}%
 }
 %    \end{macrocode}