update projektor

presentation/projektor.sty

@@ -7,6 +7,8 @@
 \DeclareOption{code}{\option@codetrue}
 \newif\ifoption@fr
 \DeclareOption{fr}{\option@frtrue}
+\newif\ifoption@dark
+\DeclareOption{dark}{\option@darktrue}
 
 \ProcessOptions
 \ifoption@code
@@ -25,6 +27,16 @@
     numbering=fraction
 ]{metropolis}
 
+
+\ifoption@dark
+    % Dark theme
+    \setbeamercolor{normal text}{fg=white,bg=black!90}
+    \setbeamercolor{alerted text}{fg=orange!65!white}
+    \setbeamercolor{progress bar}{bg=alerted text.fg!20!black!90}
+    \setbeamercolor{frametitle}{bg=black!92}
+    \setbeamercolor*{palette primary}{use=structure,fg=structure.fg}
+\fi
+
 % Footer
 \setbeamertemplate{frame footer}{
     \insertsection \hfill\hspace{-4em} \insertshorttitle