beamerinnerthemeb2b.sty

\mode<presentation>
\usepackage[skins]{tcolorbox}
\usepackage{cabin}
\usepackage[T1]{fontenc}

\setbeamertemplate{background}{
  \begin{tikzpicture}
  \ifnum\thepage>1%
       \fill[white,opacity=1] (0,0) rectangle(\paperwidth,\paperheight);
   \else
       \path[fill overzoom image=img/b2b_bg] (0,0) rectangle (\paperwidth+1,\paperheight+1);
   \fi
  \end{tikzpicture}
}

% Title page
\defbeamertemplate*{title page}{b2b}[1][]
{ 
   \vskip2cm%
    \begin{beamercolorbox}[wd=12cm,leftskip=1cm,sep=8pt,#1]{title page header}
      \includegraphics[height=1.5cm]{img/b2b_v2.png}
      \begin{tikzpicture}
          \node[anchor=center] {\Huge\textbf{\inserttitle}};%
      \end{tikzpicture}
    \end{beamercolorbox}%
    \vskip0.75cm%
    \begin{beamercolorbox}[wd=12cm,leftskip=3cm,#1]{author}
      \usebeamerfont{author}\insertauthor%
    \end{beamercolorbox}
     \vskip0.2cm%
    \begin{beamercolorbox}[wd=12cm,leftskip=3cm,#1]{date}
      \usebeamerfont{author}\insertdate%
    \end{beamercolorbox}
  \vfill
}

\defbeamertemplate*{section page}{b2b}[1][]
{ 
    \vskip2.5cm
    \begin{center}
      \Huge\textbf{\underline{\insertsectionhead}}
    \end{center}
    \vfill
}

\AtBeginSection{
\ifbeamer@inframe
  \sectionpage
\else
  \frame[plain,c,noframenumbering]{\sectionpage}
\fi
}

\mode
<all>