removed the third option of title picture

CELbeamer.cls

@@ -76,23 +76,28 @@
 \ProcessOptions\relax
 
 % The standard font sizes are:
-%
-% \tiny         = 10pt
-% \scriptsize   = 11pt
-% \footnotesize = 12pt
-% \small        = 14pt
-% \normalsize   = 17pt
-% \large        = 20pt
-% \Large        = 25pt
-% \LARGE        = 30pt
-% \huge         = 36pt
-% \Huge         = 48pt
-% \HUGE         = 60pt 
+%                default  |  if adjusted, to
+% \tiny         = 10pt    |      12pt
+% \scriptsize   = 11pt    |      14pt
+% \footnotesize = 12pt    |      16pt
+% \small        = 14pt    |      20pt
+% \normalsize   = 17pt    |      23pt
+% \large        = 20pt    |      25pt
+% \Large        = 25pt    |      28pt
+% \LARGE        = 30pt    |      
+% \huge         = 36pt    |      
+% \Huge         = 48pt    |      
+% \HUGE         = 60pt    |       
 %
 % onlytextwidth allows columns to appear only within the margins.
 \LoadClass[17pt,utf8,onlytextwidth]{beamer}
-% \renewcommand{\normalsize}{20pt}
-\renewcommand{\normalsize}{\fontsize{18pt}{24pt}\selectfont}
+\renewcommand{\tiny}{\fontsize{12pt}{15pt}\selectfont}
+\renewcommand{\scriptsize}{\fontsize{14pt}{17pt}\selectfont}
+\renewcommand{\footnotesize}{\fontsize{16pt}{19pt}\selectfont}
+\renewcommand{\small}{\fontsize{20pt}{24pt}\selectfont}
+\renewcommand{\normalsize}{\fontsize{23pt}{28pt}\selectfont}
+\renewcommand{\large}{\fontsize{25pt}{30pt}\selectfont}
+\renewcommand{\Large}{\fontsize{28pt}{33pt}\selectfont}
 % If German language is used, the babel package is required.
 % For English, it is not required, but it ensures consistent hyphenation and date formats.
 \ifgerman

introduction.tex

@@ -54,9 +54,6 @@
 \begin{frame}[title white vertical, picture=images/castle_2]
 	\titlepage
 \end{frame}
-\begin{frame}[title white vertical, picture=images/castle_3]
-	\titlepage
-\end{frame}
 
 \section{Basic Usage}
 \subsection{Options}